Śpiewanki
type: MusicGroup
genre: children's music
popularity: 43
followers: 16782
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3012ec4bc2f4fa620e1d88f74bfc4017ea403e907bceaab06f3634ea8b132beb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2067ffa3-2660-4ef6-99c1-b652cf313c20.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2067ffa3-2660-4ef6-99c1-b652cf313c20.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2067ffa3-2660-4ef6-99c1-b652cf313c20
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3012ec4bc2f4fa620e1d88f74bfc4017ea403e907bceaab06f3634ea8b132beb","name":"Śpiewanki","registered_at":"2026-06-11T14:04:09Z","symbol":"NIM0043361","token_address":"0x454d52cd29a1ff6dd53748e0da677834926ccea9","type":"artist","uuid":"2067ffa3-2660-4ef6-99c1-b652cf313c20"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3012ec4bc2f4fa620e1d88f74bfc4017ea403e907bceaab06f3634ea8b132beb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2067ffa3-2660-4ef6-99c1-b652cf313c20.json and https://artists.proofprofile.net/proofs/artist/2067ffa3-2660-4ef6-99c1-b652cf313c20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x3012ec4bc2f4fa620e1d88f74bfc4017ea403e907bceaab06f3634ea8b132beb","name":"Śpiewanki","registered_at":"2026-06-11T14:04:09Z","symbol":"NIM0043361","token_address":"0x454d52cd29a1ff6dd53748e0da677834926ccea9","type":"artist","uuid":"2067ffa3-2660-4ef6-99c1-b652cf313c20"}
album: Wilk i przyjaciele
  type: MusicAlbum
  date published: 2016
album: Pieski małe dwa
  type: MusicAlbum
  date published: 2016-04-13
album: Pieski małe dwa
  type: MusicAlbum
  date published: 2016-04-13
album: Czarny Baran
  type: MusicAlbum
  date published: 2016-04-20
album: Czarny Baran
  type: MusicAlbum
  date published: 2016-04-20
album: Panie Janie
  type: MusicAlbum
  date published: 2016-04-26
album: Panie Janie
  type: MusicAlbum
  date published: 2016-04-26
album: Kundel bury
  type: MusicAlbum
  date published: 2016-05-05
album: Straszny tchórz
  type: MusicAlbum
  date published: 2016-05-05
album: Straszny tchórz
  type: MusicAlbum
  date published: 2016-05-05
album: Kundel Bury
  type: MusicAlbum
  date published: 2016-05-05
album: Kaczuszki
  type: MusicAlbum
  date published: 2016-05-16
album: Kaczuszki
  type: MusicAlbum
  date published: 2016-05-16
album: Cztery słonie
  type: MusicAlbum
  date published: 2016-05-25
album: Cztery słonie
  type: MusicAlbum
  date published: 2016-05-25
album: Cztery słonie
  type: MusicAlbum
  date published: 2016-05-25
album: Jedzie pociąg
  type: MusicAlbum
  date published: 2016-06-03
album: Jedzie pociąg
  type: MusicAlbum
  date published: 2016-06-03
album: Jedzie pociąg
  type: MusicAlbum
  date published: 2016-06-03
album: Dziadek farmę miał
  type: MusicAlbum
  date published: 2016-06-20
album: Dziadek Farmę Miał
  type: MusicAlbum
  date published: 2016-06-20
  track: Dziadek Farmę Miał
    type: MusicRecording
    duration: PT2M16S
    duration ms: 136834
    explicit: false
    by artist: Śpiewanki
    in album: Dziadek Farmę Miał
      type: MusicAlbum
      date published: 2016-06-20
    genre: children's music
    isrc code: PLA281700055
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:54:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc6342f8576c87652b72f9df486374e2afdb8e98696a067cfb77c61d57131352b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA281700055
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:17:00Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6342f8576c87652b72f9df486374e2afdb8e98696a067cfb77c61d57131352b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA281700055.
      date published: 2026-07-12T23:17:00Z
    audio: Dziadek Farmę Miał
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.216
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.846
      additional property: Energy
        type: PropertyValue
        value: 0.446
      additional property: Speechiness
        type: PropertyValue
        value: 0.113
      additional property: Acousticness
        type: PropertyValue
        value: 0.879
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.808
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.249
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: My jesteśmy krasnoludki
  type: MusicAlbum
  date published: 2016-06-27
  track: My jesteśmy krasnoludki
    type: MusicRecording
    duration: PT2M12S
    duration ms: 132440
    explicit: false
    by artist: Śpiewanki
    in album: My jesteśmy krasnoludki
      type: MusicAlbum
      date published: 2016-06-27
    genre: children's music
    isrc code: PL75D1900003
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: My jesteśmy krasnoludki
album: My jesteśmy Krasnoludki
album: Wlazł kotek
album: Stary niedźwiedź
album: Jadą misie
album: Jestem Sobie Przedszkolaczek
album: Mam chusteczkę
album: Zuzia, lalka nieduża
album: Dzik
album: Dwaj Piraci Piegowaci
album: Jak rozmawiać z psem
album: Koła autobusu
album: Żyrafa
album: Cztery Łapy
album: Cztery łapy
album: Wilk
album: Gwiazdka
album: Prawdziwy Przyjaciel
album: Gwiezdne Ciasto
album: Leniwiec
album: Jagódki
album: Las
album: Potwór tu, potwór tam
album: Papużki
album: Lisek
album: Przyjaciela mam
album: Kotek
album: Wieloryb
album: Sowa
album: Ważka Agata
album: Rajska wyspa
album: Bóbr
album: Łoś
album: Baranek
album: Syrenka
album: Małpka
album: Jeżyk
album: Wiewiórka
album: Trąba Do Góry
album: Leniwy Pies
album: Małpka i źródełko
album: Niedźwiadek
album: Mister Zając

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-17T09:24:31+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x3db826899257cc8a59179f7eb261cdd29ddf12a3c35408f3d7d180d7ca6254ce

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958444

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958444

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D1900003

OTSTimestamp
type: PropertyValue
value: 2026-07-17T19:12:23Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db826899257cc8a59179f7eb261cdd29ddf12a3c35408f3d7d180d7ca6254ce. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D1900003.
date published: 2026-07-17T19:12:23Z

My jesteśmy krasnoludki
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.007
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.769
additional property: Energy
  type: PropertyValue
  value: 0.379
additional property: Speechiness
  type: PropertyValue
  value: 0.031
additional property: Acousticness
  type: PropertyValue
  value: 0.429
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.135
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.858
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.279
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

My jesteśmy krasnoludki
type: MusicAlbum
date published: 2016-06-27

My jesteśmy Krasnoludki
type: MusicAlbum
date published: 2016-06-27

Wlazł kotek
type: MusicAlbum
date published: 2016-07-06

Wlazł kotek
type: MusicAlbum
date published: 2016-07-06

Stary niedźwiedź
type: MusicAlbum
date published: 2016-07-15

Stary niedźwiedź
type: MusicAlbum
date published: 2016-07-15
track: Stary niedźwiedź
  type: MusicRecording
  duration: PT2M1S
  duration ms: 121443
  explicit: false
  by artist: Śpiewanki
  in album: Stary niedźwiedź
    type: MusicAlbum
    date published: 2016-07-15
  genre: children's music
  isrc code: PLA281700052
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T00:34:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x18c0ae309d52f68cbcf5d9d1d58555eb0345b640ea99300163885908b1a3de94
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958095
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958095
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA281700052
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T04:30:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c0ae309d52f68cbcf5d9d1d58555eb0345b640ea99300163885908b1a3de94. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA281700052.
    date published: 2026-07-15T04:30:08Z
  audio: Stary niedźwiedź
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.035
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.746
    additional property: Energy
      type: PropertyValue
      value: 0.364
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.752
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.44
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.242
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Stary niedźwiedź
type: MusicAlbum
date published: 2016-07-15

Jadą misie
type: MusicAlbum
date published: 2016-07-27

Jadą misie
type: MusicAlbum
date published: 2016-07-27

Jadą misie
type: MusicAlbum
date published: 2016-07-27

Jestem Sobie Przedszkolaczek
type: MusicAlbum
date published: 2016-08-03

Jestem Sobie Przedszkolaczek
type: MusicAlbum
date published: 2016-08-03

Mam chusteczkę
type: MusicAlbum
date published: 2016-08-10

Mam chusteczkę
type: MusicAlbum
date published: 2016-08-10

Mam chusteczkę
type: MusicAlbum
date published: 2016-08-10

Zuzia, lalka nieduża
type: MusicAlbum
date published: 2016-09-07

Zuzia, lalka nieduża
type: MusicAlbum
date published: 2016-09-07

Dzik
type: MusicAlbum
date published: 2016-09-12

Dzik
type: MusicAlbum
date published: 2016-09-12

Dwaj Piraci Piegowaci
type: MusicAlbum
date published: 2016-10-31

Dwaj Piraci Piegowaci
type: MusicAlbum
date published: 2016-10-31

Jak rozmawiać z psem
type: MusicAlbum
date published: 2016-12-13

Jak rozmawiać z psem
type: MusicAlbum
date published: 2016-12-13

Jak rozmawiać z psem
type: MusicAlbum
date published: 2016-12-13

Koła autobusu
type: MusicAlbum
date published: 2017-03-20

Koła autobusu
type: MusicAlbum
date published: 2017-03-20

Żyrafa
type: MusicAlbum
date published: 2017-03-20

Koła autobusu
type: MusicAlbum
date published: 2017-03-20

Cztery Łapy
type: MusicAlbum
date published: 2017-03-29

Cztery łapy
type: MusicAlbum
date published: 2017-03-29

Cztery łapy
type: MusicAlbum
date published: 2017-03-29

Wilk
type: MusicAlbum
date published: 2017-04-06

Wilk
type: MusicAlbum
date published: 2017-04-06

Gwiazdka
type: MusicAlbum
date published: 2017-05-03

Prawdziwy Przyjaciel
type: MusicAlbum
date published: 2017-06-06

Prawdziwy Przyjaciel
type: MusicAlbum
date published: 2017-06-06

Prawdziwy Przyjaciel
type: MusicAlbum
date published: 2017-06-06
track: Prawdziwy Przyjaciel
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180620
  explicit: false
  by artist: Śpiewanki
  in album: Prawdziwy Przyjaciel
    type: MusicAlbum
    date published: 2017-06-06
  genre: children's music
  isrc code: PL75D1900012
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T21:08:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe838539c871e202a6e36197387582b5fedb86d6878d26b189f8aa15cc53413d8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958329
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958329
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D1900012
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:17:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe838539c871e202a6e36197387582b5fedb86d6878d26b189f8aa15cc53413d8. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:17:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D1900012.
    date published: 2026-07-17T00:17:20Z
  audio: Prawdziwy Przyjaciel
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.873
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.705
    additional property: Energy
      type: PropertyValue
      value: 0.574
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.584
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.075
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.8
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.533
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

Gwiezdne Ciasto
type: MusicAlbum
date published: 2017-07-20

Gwiezdne Ciasto
type: MusicAlbum
date published: 2017-07-20

Leniwiec
type: MusicAlbum
date published: 2017-09-29

Leniwiec
type: MusicAlbum
date published: 2017-09-29

Jagódki
type: MusicAlbum
date published: 2017-10-24

Jagódki
type: MusicAlbum
date published: 2017-10-24

Jagódki
type: MusicAlbum
date published: 2017-10-24

Żyrafa
type: MusicAlbum
date published: 2017-11-20

Żyrafa
type: MusicAlbum
date published: 2017-11-20

Las
type: MusicAlbum
date published: 2017-12-20

Las
type: MusicAlbum
date published: 2017-12-20

Potwór tu, potwór tam
type: MusicAlbum
date published: 2018-02-27

Potwór tu, potwór tam
type: MusicAlbum
date published: 2018-02-27

Wilk i przyjaciele
type: MusicAlbum
date published: 2018-06-11

Papużki
type: MusicAlbum
date published: 2018-09-07

Papużki
type: MusicAlbum
date published: 2018-09-07

Lisek
type: MusicAlbum
date published: 2018-10-22

Lisek
type: MusicAlbum
date published: 2018-10-22

Przyjaciela mam
type: MusicAlbum
date published: 2018-10-27

Przyjaciela mam
type: MusicAlbum
date published: 2018-10-27

Kotek
type: MusicAlbum
date published: 2018-11-26

Kotek
type: MusicAlbum
date published: 2018-11-26

Wieloryb
type: MusicAlbum
date published: 2018-12-20

Wieloryb
type: MusicAlbum
date published: 2018-12-20

Sowa
type: MusicAlbum
date published: 2019-01-22

Sowa
type: MusicAlbum
date published: 2019-01-22

Ważka Agata
type: MusicAlbum
date published: 2019-02-11

Ważka Agata
type: MusicAlbum
date published: 2019-02-11

Rajska wyspa
type: MusicAlbum
date published: 2019-03-11

Rajska wyspa
type: MusicAlbum
date published: 2019-03-11

Bóbr
type: MusicAlbum
date published: 2019-04-16

Bóbr
type: MusicAlbum
date published: 2019-04-16

Łoś
type: MusicAlbum
date published: 2019-05-13

Łoś
type: MusicAlbum
date published: 2019-05-13

Baranek
type: MusicAlbum
date published: 2019-06-03

Baranek
type: MusicAlbum
date published: 2019-06-03

Syrenka
type: MusicAlbum
date published: 2019-07-02

Syrenka
type: MusicAlbum
date published: 2019-07-02

Małpka
type: MusicAlbum
date published: 2019-07-31

Małpka
type: MusicAlbum
date published: 2019-07-31

Jeżyk
type: MusicAlbum
date published: 2019-09-02

Jeżyk
type: MusicAlbum
date published: 2019-09-02

Wiewiórka
type: MusicAlbum
date published: 2019-09-30

Wiewiórka
type: MusicAlbum
date published: 2019-09-30

Trąba Do Góry
type: MusicAlbum
date published: 2019-10-29

Trąba Do Góry
type: MusicAlbum
date published: 2019-10-29

Leniwy Pies
type: MusicAlbum
date published: 2019-12-02

Leniwy Pies
type: MusicAlbum
date published: 2019-12-02

Małpka i źródełko
type: MusicAlbum
date published: 2020-02-03

Małpka i źródełko
type: MusicAlbum
date published: 2020-02-03

Niedźwiadek
type: MusicAlbum
date published: 2020-02-29

Niedźwiadek
type: MusicAlbum
date published: 2020-02-29

Mister Zając
type: MusicAlbum
date published: 2020-03-30

Mister Zając
type: MusicAlbum
date published: 2020-03-30

Chodźmy na spacer
type: MusicAlbum
date published: 2020-04-28

Chodźmy na spacer
type: MusicAlbum
date published: 2020-04-28

Gąsienica
type: MusicAlbum
date published: 2020-05-02

Gąsienica
type: MusicAlbum
date published: 2020-05-02

Malutki
type: MusicAlbum
date published: 2020-05-11

Malutki
type: MusicAlbum
date published: 2020-05-11

Świnka
type: MusicAlbum
date published: 2020-05-14

Jamniki
type: MusicAlbum
date published: 2020-05-14

Jamniki
type: MusicAlbum
date published: 2020-05-14

Krokodyl
type: MusicAlbum
date published: 2020-05-14

Jelonek
type: MusicAlbum
date published: 2020-05-14

Krokodyl
type: MusicAlbum
date published: 2020-05-14

Krokodyl
type: MusicAlbum
date published: 2020-05-14

Świnka
type: MusicAlbum
date published: 2020-05-14

Jelonek
type: MusicAlbum
date published: 2020-05-14

Gąsienica
type: MusicAlbum
date published: 2020-05-15

Pies i kot
type: MusicAlbum
date published: 2020-08-31

Pies Marzyciel
type: MusicAlbum
date published: 2020-10-01
track: Pies Marzyciel
  type: MusicRecording
  duration: PT3M40S
  duration ms: 220059
  explicit: false
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    type: MusicAlbum
    date published: 2020-10-01
  genre: children's music
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff234ddc48605c9ab3e274f5c84c33cc7793fc042f364955d3dd2ee829ff5696. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:32:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000012.
    date published: 2026-07-17T04:32:16Z
  audio: Pies Marzyciel
    type: AudioObject
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Pies Marzyciel
type: MusicAlbum
date published: 2020-10-01

Lisia rodzina
type: MusicAlbum
date published: 2020-12-01

Ślimak
type: MusicAlbum
date published: 2021-01-01

Ślimak
type: MusicAlbum
date published: 2021-01-01

Ślimak
type: MusicAlbum
date published: 2021-01-01

Słonik
type: MusicAlbum
date published: 2021-03-01
track: Słonik
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  duration: PT2M43S
  duration ms: 163265
  explicit: false
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    type: MusicAlbum
    date published: 2021-03-01
  genre: children's music
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T20:19:18Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d52db70bdb65dee85560af4627e940416e34d6f0d6afbae6070ef486464193. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000004.
    date published: 2026-07-19T20:19:18Z
  audio: Słonik
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Słonik
type: MusicAlbum
date published: 2021-03-01

Krowa
type: MusicAlbum
date published: 2021-04-01

Krowa
type: MusicAlbum
date published: 2021-04-01
track: Krowa
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185685
  explicit: false
  by artist: Śpiewanki
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    type: MusicAlbum
    date published: 2021-04-01
  genre: children's music
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000098
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3e94baf20d0c38fb80460cad44dfd435aea6c28cf80be6dda1b64f2c99f9f2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000098.
    date published: 2026-07-16T02:28:43Z
  audio: Krowa
    type: AudioObject
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Pies z kulawą nogą
type: MusicAlbum
date published: 2021-05-01

Pies z kulawą nogą
type: MusicAlbum
date published: 2021-05-01

Pies czy foka
type: MusicAlbum
date published: 2021-06-01

Kameleon
type: MusicAlbum
date published: 2021-07-01
track: Kameleon
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  duration: PT2M23S
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  explicit: false
  by artist: Śpiewanki
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    date published: 2021-07-01
  genre: children's music
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d060fa03332483c48d2e46c6e6a897cc3944ad78990b764ac0e6ef65f8b781d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000010.
    date published: 2026-07-06T06:56:49Z
  audio: Kameleon
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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Lama i mama
type: MusicAlbum
date published: 2021-07-01

Lama
type: MusicAlbum
date published: 2021-07-01

Kameleon
type: MusicAlbum
date published: 2021-07-01

Gdyby mieć psa
type: MusicAlbum
date published: 2021-09-01

Dzik robi to co chce
type: MusicAlbum
date published: 2021-10-01
track: Dzik robi to co chce
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  explicit: false
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    date published: 2021-10-01
  genre: children's music
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d13d5dc0e93582b6e99905755ce6be31202365da8a1526bfb0b32ff6b88dfb3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2100003.
    date published: 2026-07-06T06:56:49Z
  audio: Dzik robi to co chce
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
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      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.742
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Mały tygrys
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date published: 2021-12-01

Mały tygrys
type: MusicAlbum
date published: 2021-12-01

Zabawa z pandą
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date published: 2022-01-03

Zabawa z pandą
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date published: 2022-01-03

Dziobak
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Dziobak
type: MusicAlbum
date published: 2022-02-01

Wilk i guzik
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date published: 2022-03-01
track: Wilk i guzik
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  explicit: false
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  genre: children's music
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  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419684c53a5e2a10c1597f561c703bc5261a803d9a904484e741b48f9b9fda4c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2100002.
    date published: 2026-07-03T21:18:05Z
  audio: Wilk i guzik
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.963
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.673
    additional property: Energy
      type: PropertyValue
      value: 0.462
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.331
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.156
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.742
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.428
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Bocian
type: MusicAlbum
date published: 2022-04-01
track: Bocian
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151302
  explicit: false
  by artist: Śpiewanki
  in album: Bocian
    type: MusicAlbum
    date published: 2022-04-01
  genre: children's music
  isrc code: PL75D2000090
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T14:39:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x55bf432380c2e528ee0741ef9a3671773728299f84cd429f38a595b852760a2b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958567
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958567
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000090
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T15:22:40Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bf432380c2e528ee0741ef9a3671773728299f84cd429f38a595b852760a2b. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000090.
    date published: 2026-07-18T15:22:40Z
  audio: Bocian
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 82.917
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.521
    additional property: Energy
      type: PropertyValue
      value: 0.499
    additional property: Speechiness
      type: PropertyValue
      value: 0.131
    additional property: Acousticness
      type: PropertyValue
      value: 0.547
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.119
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.591
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.116
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Tukan
type: MusicAlbum
date published: 2022-05-02

Słonik i bracia
type: MusicAlbum
date published: 2022-06-01
track: Słonik i bracia
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198000
  explicit: false
  by artist: Śpiewanki
  in album: Słonik i bracia
    type: MusicAlbum
    date published: 2022-06-01
  genre: children's music
  isrc code: PL75D2200014
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T21:01:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x08144b87b31f5f2823987ac6f27b218810b5f98bcd3348de7621e20a0a0c9c00
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957756
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957756
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200014
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-12T21:36:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08144b87b31f5f2823987ac6f27b218810b5f98bcd3348de7621e20a0a0c9c00. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200014.
    date published: 2026-07-12T21:36:27Z
  audio: Słonik i bracia
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.872
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.764
    additional property: Energy
      type: PropertyValue
      value: 0.533
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.862
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.522
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.489
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.966
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

Słonik i bracia
type: MusicAlbum
date published: 2022-06-01

Marchewkowy pasztet
type: MusicAlbum
date published: 2022-07-04
track: Marchewkowy pasztet
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144541
  explicit: false
  by artist: Śpiewanki
  in album: Marchewkowy pasztet
    type: MusicAlbum
    date published: 2022-07-04
  genre: children's music
  isrc code: PL75D2000099
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T22:44:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4f2aec6096865c4fe8e8467ed20279e721e5330efe30c7591fdba00313fa8396
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956857
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956857
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000099
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:26:17Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2aec6096865c4fe8e8467ed20279e721e5330efe30c7591fdba00313fa8396. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000099.
    date published: 2026-07-06T01:26:17Z
  audio: Marchewkowy pasztet
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.084
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.714
    additional property: Energy
      type: PropertyValue
      value: 0.606
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.36
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.671
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.62
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Marchewkowy pasztet
type: MusicAlbum
date published: 2022-07-04

Pająk i balon
type: MusicAlbum
date published: 2022-08-01
track: Pająk i balon
  type: MusicRecording
  duration: PT1M55S
  duration ms: 115899
  explicit: false
  by artist: Śpiewanki
  in album: Pająk i balon
    type: MusicAlbum
    date published: 2022-08-01
  genre: children's music
  isrc code: PL75D2200011
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T05:32:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5e348f63a1eb7e801c62cd9500f0bb0f8525beca8f96239a346191336860a005
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956656
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956656
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200011
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T14:03:39Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e348f63a1eb7e801c62cd9500f0bb0f8525beca8f96239a346191336860a005. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200011.
    date published: 2026-07-04T14:03:39Z
  audio: Pająk i balon
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.694
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.683
    additional property: Energy
      type: PropertyValue
      value: 0.517
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.09
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.085
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.422
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.555
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Kapela
type: MusicAlbum
date published: 2022-09-01

Kapela
type: MusicAlbum
date published: 2022-09-01

Koala i ukulele
type: MusicAlbum
date published: 2022-10-03
track: Koala i ukulele
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199384
  explicit: false
  by artist: Śpiewanki
  in album: Koala i ukulele
    type: MusicAlbum
    date published: 2022-10-03
  genre: children's music
  isrc code: PL75D2200015
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T05:28:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfb2c4023bc96a10368c5e5184f478a35e93d25b0dab12ca636d94867cb1689c0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958832
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958832
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200015
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T08:30:32Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2c4023bc96a10368c5e5184f478a35e93d25b0dab12ca636d94867cb1689c0. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200015.
    date published: 2026-07-20T08:30:32Z
  audio: Koala i ukulele
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.014
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.574
    additional property: Energy
      type: PropertyValue
      value: 0.416
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.658
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.606
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.582
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.041
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Morski żółw
type: MusicAlbum
date published: 2022-11-01

Morski Żółw
type: MusicAlbum
date published: 2022-11-01

Ośmiornica
type: MusicAlbum
date published: 2022-12-01
track: Ośmiornica
  type: MusicRecording
  duration: PT2M4S
  duration ms: 124173
  explicit: false
  by artist: Śpiewanki
  in album: Ośmiornica
    type: MusicAlbum
    date published: 2022-12-01
  genre: children's music
  isrc code: PL75D2100001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T09:53:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb819256e1b1bfdd1b34a698d4946ffea906b40a5e077858f02d2786f540a4878
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956639
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2100001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T11:19:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb819256e1b1bfdd1b34a698d4946ffea906b40a5e077858f02d2786f540a4878. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2100001.
    date published: 2026-07-04T11:19:20Z
  audio: Ośmiornica
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.878
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.836
    additional property: Energy
      type: PropertyValue
      value: 0.708
    additional property: Speechiness
      type: PropertyValue
      value: 0.138
    additional property: Acousticness
      type: PropertyValue
      value: 0.753
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.066
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.921
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.477
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

Pingwin Eryk
type: MusicAlbum
date published: 2023-01-02

Pingwin Eryk
type: MusicAlbum
date published: 2023-01-02

Dzięcioł
type: MusicAlbum
date published: 2023-02-01

Dzięcioł
type: MusicAlbum
date published: 2023-02-01

Hipopotamka Anka
type: MusicAlbum
date published: 2023-03-01
track: Hipopotamka Anka
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156256
  explicit: false
  by artist: Śpiewanki
  in album: Hipopotamka Anka
    type: MusicAlbum
    date published: 2023-03-01
  genre: children's music
  isrc code: PL75D2200012
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T15:49:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6fc26a4dd7279241bb4e62db7f2acf68654817bebed3da95e67b76b6360b4ecd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200012
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc26a4dd7279241bb4e62db7f2acf68654817bebed3da95e67b76b6360b4ecd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200012.
    date published: 2026-07-03T19:59:51Z
  audio: Hipopotamka Anka
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.012
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.756
    additional property: Energy
      type: PropertyValue
      value: 0.562
    additional property: Speechiness
      type: PropertyValue
      value: 0.108
    additional property: Acousticness
      type: PropertyValue
      value: 0.475
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.085
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.856
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.173
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Kapibara
type: MusicAlbum
date published: 2023-04-03

Kapibara
type: MusicAlbum
date published: 2023-04-03

Panda marynarzem
type: MusicAlbum
date published: 2023-05-01

Panda marynarz
type: MusicAlbum
date published: 2023-05-01

Śpiewamy Śpiewanki: Kundel Bury
type: MusicAlbum
date published: 2023-05-26

Co ta żaba chce?
type: MusicAlbum
date published: 2023-06-02

Śpiewamy Śpiewanki: Małpka
type: MusicAlbum
date published: 2023-06-02

Co ta żaba chce?
type: MusicAlbum
date published: 2023-06-02
track: Co ta żaba chce?
  type: MusicRecording
  duration: PT3M21S
  duration ms: 201418
  explicit: false
  by artist: Śpiewanki
  in album: Co ta żaba chce?
    type: MusicAlbum
    date published: 2023-06-02
  genre: children's music
  isrc code: PL75D2200033
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T05:43:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa07e1b0a2d8310c7fbfe59b20ace185f92ad4c69ad6a718af84fa24b427bad4a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956476
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956476
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200033
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T09:04:44Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07e1b0a2d8310c7fbfe59b20ace185f92ad4c69ad6a718af84fa24b427bad4a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200033.
    date published: 2026-07-03T09:04:44Z
  audio: Co ta żaba chce?
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.956
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.786
    additional property: Energy
      type: PropertyValue
      value: 0.618
    additional property: Speechiness
      type: PropertyValue
      value: 0.207
    additional property: Acousticness
      type: PropertyValue
      value: 0.576
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.133
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.757
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.836
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Śpiewamy Śpiewanki: Wieloryb
type: MusicAlbum
date published: 2023-06-09

Śpiewamy Śpiewanki: Wieloryb
type: MusicAlbum
date published: 2023-06-09

Śpiewamy Śpiewanki: Kotek
type: MusicAlbum
date published: 2023-06-23

Spiewamy Spiewanki: Kotek
type: MusicAlbum
date published: 2023-06-23

Śpiewamy Śpiewanki: Pieski małe dwa
type: MusicAlbum
date published: 2023-06-30

Śpiewamy Śpiewanki: Pieski małe dwa
type: MusicAlbum
date published: 2023-06-30

Wilk i świnki
type: MusicAlbum
date published: 2023-07-07

Wilk i świnki
type: MusicAlbum
date published: 2023-07-07
track: Wilk i świnki
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217822
  explicit: false
  by artist: Śpiewanki
  in album: Wilk i świnki
    type: MusicAlbum
    date published: 2023-07-07
  genre: children's music
  isrc code: PL75D2000101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T08:44:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3501f33d84d0a693e67ebf4c4da95aa090e486b77a04761d8568daafff63ebd5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000101
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3501f33d84d0a693e67ebf4c4da95aa090e486b77a04761d8568daafff63ebd5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2000101.
    date published: 2026-07-05T10:01:46Z
  audio: Wilk i świnki
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.939
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.662
    additional property: Energy
      type: PropertyValue
      value: 0.701
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.739
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.3
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.861
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.315
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Chusteczka
type: MusicAlbum
date published: 2023-07-14

Śpiewamy Śpiewanki: Koła autobusu
type: MusicAlbum
date published: 2023-07-28
track: Śpiewamy Śpiewanki: Koła autobusu
  type: MusicRecording
  duration: PT2M0S
  duration ms: 120894
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Koła autobusu
    type: MusicAlbum
    date published: 2023-07-28
  genre: children's music
  isrc code: PL75D2300017
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T21:22:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8d0c2826532760ffd3f3fe550779cfc75dc10e56b87cf1d86eb4e617e8d50edf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958613
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958613
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300017
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T21:35:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0c2826532760ffd3f3fe550779cfc75dc10e56b87cf1d86eb4e617e8d50edf. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300017.
    date published: 2026-07-18T21:35:09Z
  audio: Śpiewamy Śpiewanki: Koła autobusu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 146.979
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.689
    additional property: Energy
      type: PropertyValue
      value: 0.503
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.564
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.138
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.587
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.991
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Żółw z Galapagos
type: MusicAlbum
date published: 2023-08-04

Zółw z Galapagos
type: MusicAlbum
date published: 2023-08-04
track: Zółw z Galapagos
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219359
  explicit: false
  by artist: Śpiewanki
  in album: Zółw z Galapagos
    type: MusicAlbum
    date published: 2023-08-04
  genre: children's music
  isrc code: PL75D2300012
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T06:16:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7009f92d38565ffb6ea701abd882c2bc4b3bf296a91acb43db7d6faebda27d9c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956639
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300012
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T11:19:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7009f92d38565ffb6ea701abd882c2bc4b3bf296a91acb43db7d6faebda27d9c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300012.
    date published: 2026-07-04T11:19:20Z
  audio: Zółw z Galapagos
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 80.075
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.644
    additional property: Energy
      type: PropertyValue
      value: 0.44
    additional property: Speechiness
      type: PropertyValue
      value: 0.099
    additional property: Acousticness
      type: PropertyValue
      value: 0.933
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.191
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.438
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.555
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Żółw z Galapagos
type: MusicAlbum
date published: 2023-08-04

Śpiewamy Śpiewanki: Jagódki
type: MusicAlbum
date published: 2023-08-11

Śpiewamy Śpiewanki: Świnka
type: MusicAlbum
date published: 2023-08-25

Śpiewamy Śpiewanki: Świnka
type: MusicAlbum
date published: 2023-08-25

Guziec
type: MusicAlbum
date published: 2023-09-01

Guziec
type: MusicAlbum
date published: 2023-09-01

Śpiewamy Śpiewanki: Ważka
type: MusicAlbum
date published: 2023-09-08

Śpiewamy Śpiewanki: Ważka Agata
type: MusicAlbum
date published: 2023-09-08

Śpiewamy Śpiewanki: Syrenka
type: MusicAlbum
date published: 2023-09-22

Śpiewamy Śpiewanki: Żyrafa
type: MusicAlbum
date published: 2023-09-29

Śpiewamy Śpiewanki: Żyrafa
type: MusicAlbum
date published: 2023-09-29

Modna Panda
type: MusicAlbum
date published: 2023-10-06

Modna Panda
type: MusicAlbum
date published: 2023-10-06
track: Modna Panda
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192012
  explicit: false
  by artist: Śpiewanki
  in album: Modna Panda
    type: MusicAlbum
    date published: 2023-10-06
  genre: children's music
  isrc code: PL75D2300014
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T05:18:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9f458cdbec88c3db7257e1ecd26775fb7a1fea57d518f0982e74494b73040e53
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956476
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956476
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300014
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T09:04:44Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f458cdbec88c3db7257e1ecd26775fb7a1fea57d518f0982e74494b73040e53. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300014.
    date published: 2026-07-03T09:04:44Z
  audio: Modna Panda
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.031
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.92
    additional property: Energy
      type: PropertyValue
      value: 0.457
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.315
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.186
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.952
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.859
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Lisek
type: MusicAlbum
date published: 2023-10-13

Śpiewamy Śpiewanki: Lisek
type: MusicAlbum
date published: 2023-10-13

Śpiewamy Śpiewanki: Jelonek
type: MusicAlbum
date published: 2023-10-27

Śpiewamy Śpiewanki: Jelonek
type: MusicAlbum
date published: 2023-10-27

Czapla i czacza
type: MusicAlbum
date published: 2023-11-03
track: Czapla i czacza
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184004
  explicit: false
  by artist: Śpiewanki
  in album: Czapla i czacza
    type: MusicAlbum
    date published: 2023-11-03
  genre: children's music
  isrc code: PL75D2300015
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T12:56:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5f7ec9d8604877ef4f51c62a6470260b1f48a7a9800491c11d934b989ee688e4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958736
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958736
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300015
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T15:58:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7ec9d8604877ef4f51c62a6470260b1f48a7a9800491c11d934b989ee688e4. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:58:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2300015.
    date published: 2026-07-19T15:58:27Z
  audio: Czapla i czacza
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.97
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.711
    additional property: Energy
      type: PropertyValue
      value: 0.522
    additional property: Speechiness
      type: PropertyValue
      value: 0.214
    additional property: Acousticness
      type: PropertyValue
      value: 0.815
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.779
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.76
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Czapla i cza-cza
type: MusicAlbum
date published: 2023-11-03

Śpiewamy Śpiewanki: Ślimak
type: MusicAlbum
date published: 2023-11-10

Tygrys bengalski
type: MusicAlbum
date published: 2023-12-01
track: Tygrys bengalski
  type: MusicRecording
  duration: PT2M44S
  duration ms: 164984
  explicit: false
  by artist: Śpiewanki
  in album: Tygrys bengalski
    type: MusicAlbum
    date published: 2023-12-01
  genre: children's music
  isrc code: PL75D2200004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T03:47:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x29e4375c17a883822c2002d3f54e0987f1160a75d232059c43db53e59d6548fa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958491
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958491
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200004
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T04:29:42Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e4375c17a883822c2002d3f54e0987f1160a75d232059c43db53e59d6548fa. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200004.
    date published: 2026-07-18T04:29:42Z
  audio: Tygrys bengalski
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.926
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.665
    additional property: Energy
      type: PropertyValue
      value: 0.664
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.004
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.65
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.955
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Zabawa z pandą
type: MusicAlbum
date published: 2023-12-08

Śpiewamy Śpiewanki: Czarny Baran
type: MusicAlbum
date published: 2023-12-29

Słoń Marzyciel
type: MusicAlbum
date published: 2024-01-05

Śpiewamy Śpiewanki: Zuzia
type: MusicAlbum
date published: 2024-01-12

Śpiewamy Śpiewanki: Cztery słonie
type: MusicAlbum
date published: 2024-01-26

Lew robi miny
type: MusicAlbum
date published: 2024-02-02

Śpiewamy Śpiewanki: Jedzie pociąg
type: MusicAlbum
date published: 2024-02-09

Śpiewamy Śpiewanki: Krowa
type: MusicAlbum
date published: 2024-02-23

Śpiewamy Śpiewanki: Krowa
type: MusicAlbum
date published: 2024-02-23

Guziec i kałuże
type: MusicAlbum
date published: 2024-03-01

Śpiewamy Śpiewanki: Cztery łapy
type: MusicAlbum
date published: 2024-03-08

Śpiewamy Śpiewanki: Dziadek farmę miał
type: MusicAlbum
date published: 2024-03-22
track: Śpiewamy Śpiewanki: Dziadek farmę miał
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136931
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Dziadek farmę miał
    type: MusicAlbum
    date published: 2024-03-22
  genre: children's music
  isrc code: PL75D2400008
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T13:42:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x88eba80308f57061d59b9fbdf90d079d853ca348fb27443ef4e44c207ddd5648
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958749
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958749
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400008
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T16:43:31Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eba80308f57061d59b9fbdf90d079d853ca348fb27443ef4e44c207ddd5648. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:43:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400008.
    date published: 2026-07-19T16:43:31Z
  audio: Śpiewamy Śpiewanki: Dziadek farmę miał
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.017
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.9
    additional property: Energy
      type: PropertyValue
      value: 0.403
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.626
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.097
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.59
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.384
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Stary niedźwiedź
type: MusicAlbum
date published: 2024-03-29

Śpiewamy Śpiewanki: Stary niedźwiedź
type: MusicAlbum
date published: 2024-03-29

Motyl i słoń
type: MusicAlbum
date published: 2024-04-05

Śpiewamy Śpiewanki: Dzik
type: MusicAlbum
date published: 2024-04-12

Śpiewamy Śpiewanki: Kaczuszki
type: MusicAlbum
date published: 2024-04-26

Byk
type: MusicAlbum
date published: 2024-05-03
track: Byk
  type: MusicRecording
  duration: PT2M44S
  duration ms: 164883
  explicit: false
  by artist: Śpiewanki
  in album: Byk
    type: MusicAlbum
    date published: 2024-05-03
  genre: children's music
  isrc code: PL75D2400018
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T00:00:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x531a35f1f0efc0172d0c6ba470b9727ddb2933234522581fe1c470b145d518e6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400018
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531a35f1f0efc0172d0c6ba470b9727ddb2933234522581fe1c470b145d518e6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400018.
    date published: 2026-07-05T01:43:49Z
  audio: Byk
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.573
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.821
    additional property: Energy
      type: PropertyValue
      value: 0.477
    additional property: Speechiness
      type: PropertyValue
      value: 0.063
    additional property: Acousticness
      type: PropertyValue
      value: 0.726
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.905
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.278
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Byk
type: MusicAlbum
date published: 2024-05-03

Śpiewamy Śpiewanki: Malutki
type: MusicAlbum
date published: 2024-05-10
track: Śpiewamy Śpiewanki: Malutki
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191007
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Malutki
    type: MusicAlbum
    date published: 2024-05-10
  genre: children's music
  isrc code: PL75D2400016
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T02:58:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8cea368aca92f02634db9a7c10ed2a94d971309982a21dab2d29f0fb637a45d2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956891
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956891
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400016
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T07:16:32Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cea368aca92f02634db9a7c10ed2a94d971309982a21dab2d29f0fb637a45d2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400016.
    date published: 2026-07-06T07:16:32Z
  audio: Śpiewamy Śpiewanki: Malutki
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.096
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.88
    additional property: Energy
      type: PropertyValue
      value: 0.474
    additional property: Speechiness
      type: PropertyValue
      value: 0.312
    additional property: Acousticness
      type: PropertyValue
      value: 0.173
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.374
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.044
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Panie Janie
type: MusicAlbum
date published: 2024-05-24

Śpiewamy Śpiewanki: Panie Janie
type: MusicAlbum
date published: 2024-05-24

Śpiewamy Śpiewanki: Wlazł kotek
type: MusicAlbum
date published: 2024-05-31

Sowa bigbitowa
type: MusicAlbum
date published: 2024-06-07
track: Sowa bigbitowa
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159625
  explicit: false
  by artist: Śpiewanki
  in album: Sowa bigbitowa
    type: MusicAlbum
    date published: 2024-06-07
  genre: children's music
  isrc code: QZMEM2472100
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T17:18:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xca9b2c06965a691de7639c11d1a3e3b0cf09cbd43c9bb896ab237fbe0fe1d5de
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2472100
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9b2c06965a691de7639c11d1a3e3b0cf09cbd43c9bb896ab237fbe0fe1d5de. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2472100.
    date published: 2026-07-05T01:12:41Z
  audio: Sowa bigbitowa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.034
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.817
    additional property: Energy
      type: PropertyValue
      value: 0.466
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.414
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.226
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.584
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.155
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Dzik robi to co chce
type: MusicAlbum
date published: 2024-06-14

Śpiewamy Śpiewanki: Dzik robi to co chce
type: MusicAlbum
date published: 2024-06-14

Śpiewamy Śpiewanki: Krasnoludki
type: MusicAlbum
date published: 2024-06-28
track: Śpiewamy Śpiewanki: Krasnoludki
  type: MusicRecording
  duration: PT2M12S
  duration ms: 132283
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Krasnoludki
    type: MusicAlbum
    date published: 2024-06-28
  genre: children's music
  isrc code: PL75D2400014
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T15:21:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0aa1fef1a9ecc8d32e4b1d17dd837cf082b08eb58d275046b85e4f99b68612fe
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958571
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958571
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400014
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T15:39:25Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa1fef1a9ecc8d32e4b1d17dd837cf082b08eb58d275046b85e4f99b68612fe. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400014.
    date published: 2026-07-18T15:39:25Z
  audio: Śpiewamy Śpiewanki: Krasnoludki
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.73
    additional property: Energy
      type: PropertyValue
      value: 0.342
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.126
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.676
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.45
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Wielbłąd
type: MusicAlbum
date published: 2024-07-05
track: Wielbłąd
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152798
  explicit: false
  by artist: Śpiewanki
  in album: Wielbłąd
    type: MusicAlbum
    date published: 2024-07-05
  genre: children's music
  isrc code: PL75D2200006
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T21:13:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb7e2ced78d8c41496abca755402d47991fbf08eab2a8bb5c96a0781dd35ad54d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958783
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958783
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200006
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T00:10:53Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e2ced78d8c41496abca755402d47991fbf08eab2a8bb5c96a0781dd35ad54d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:10:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200006.
    date published: 2026-07-20T00:10:53Z
  audio: Wielbłąd
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.99
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.73
    additional property: Energy
      type: PropertyValue
      value: 0.683
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.183
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.073
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.551
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.235
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Pies i kot
type: MusicAlbum
date published: 2024-07-12

Śpiewamy Śpiewanki: Wilk
type: MusicAlbum
date published: 2024-07-19
track: Śpiewamy Śpiewanki: Wilk
  type: MusicRecording
  duration: PT1M49S
  duration ms: 109270
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Wilk
    type: MusicAlbum
    date published: 2024-07-19
  genre: children's music
  isrc code: PL75D2400024
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T15:06:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x82bd855413876082f4774f8b7cd736bc0c3b9059e3954057af4141ac76840777
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956826
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956826
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400024
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T19:27:56Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bd855413876082f4774f8b7cd736bc0c3b9059e3954057af4141ac76840777. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400024.
    date published: 2026-07-05T19:27:56Z
  audio: Śpiewamy Śpiewanki: Wilk
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.012
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.796
    additional property: Energy
      type: PropertyValue
      value: 0.234
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.777
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.557
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.699
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Las
type: MusicAlbum
date published: 2024-07-26

Ptaszek Kiwi
type: MusicAlbum
date published: 2024-08-02
track: Ptaszek Kiwi
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190909
  explicit: false
  by artist: Śpiewanki
  in album: Ptaszek Kiwi
    type: MusicAlbum
    date published: 2024-08-02
  genre: children's music
  isrc code: PL75D2400021
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T04:21:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa20cb7e3dafd773090774cfdbc7844d08b045af293ca4523db07789f6803f6d3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956776
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956776
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400021
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:59:37Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20cb7e3dafd773090774cfdbc7844d08b045af293ca4523db07789f6803f6d3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400021.
    date published: 2026-07-05T10:59:37Z
  audio: Ptaszek Kiwi
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.112
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.567
    additional property: Energy
      type: PropertyValue
      value: 0.368
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.049
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.297
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.262
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.565
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Śpiewamy Śpiewanki: Łoś
type: MusicAlbum
date published: 2024-08-09

Śpiewamy Śpiewanki: Jeżyk
type: MusicAlbum
date published: 2024-08-16

Śpiewamy Śpiewanki: Rajska wyspa
type: MusicAlbum
date published: 2024-08-23
track: Śpiewamy Śpiewanki: Rajska wyspa
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174183
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Rajska wyspa
    type: MusicAlbum
    date published: 2024-08-23
  genre: children's music
  isrc code: PL75D2400028
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T05:32:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb2e48311c1e3d9049ef57f972b811ff04f761ee74f21c31c364153d947a374e6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958839
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958839
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400028
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T08:34:22Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e48311c1e3d9049ef57f972b811ff04f761ee74f21c31c364153d947a374e6. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:34:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400028.
    date published: 2026-07-20T08:34:22Z
  audio: Śpiewamy Śpiewanki: Rajska wyspa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 170.212
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.75
    additional property: Energy
      type: PropertyValue
      value: 0.469
    additional property: Speechiness
      type: PropertyValue
      value: 0.147
    additional property: Acousticness
      type: PropertyValue
      value: 0.189
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.619
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.858
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Papużki
type: MusicAlbum
date published: 2024-08-30

Dżdżownica Dżejn
type: MusicAlbum
date published: 2024-09-06
track: Dżdżownica Dżejn
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159480
  explicit: false
  by artist: Śpiewanki
  in album: Dżdżownica Dżejn
    type: MusicAlbum
    date published: 2024-09-06
  genre: children's music
  isrc code: PL75D2400020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T10:31:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x71343c60c388bafaaec9c1f05ade255e7d01cef2f152a728b0099e0bb5f29fd7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956711
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956711
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400020
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T22:48:52Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71343c60c388bafaaec9c1f05ade255e7d01cef2f152a728b0099e0bb5f29fd7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400020.
    date published: 2026-07-04T22:48:52Z
  audio: Dżdżownica Dżejn
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.092
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.748
    additional property: Energy
      type: PropertyValue
      value: 0.755
    additional property: Speechiness
      type: PropertyValue
      value: 0.061
    additional property: Acousticness
      type: PropertyValue
      value: 0.397
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.132
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.639
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.917
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Wilk i przyjaciele
type: MusicAlbum
date published: 2024-09-13
track: Śpiewamy Śpiewanki: Wilk i przyjaciele
  type: MusicRecording
  duration: PT1M51S
  duration ms: 111192
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Wilk i przyjaciele
    type: MusicAlbum
    date published: 2024-09-13
  genre: children's music
  isrc code: PL75D2400030
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T03:59:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc4223d47709c451d1ed128cf2643e190e9dad27d0ee7cf1efe578b022ac1019d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958823
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958823
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400030
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T07:01:22Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4223d47709c451d1ed128cf2643e190e9dad27d0ee7cf1efe578b022ac1019d. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:01:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400030.
    date published: 2026-07-20T07:01:22Z
  audio: Śpiewamy Śpiewanki: Wilk i przyjaciele
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 146.992
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.901
    additional property: Energy
      type: PropertyValue
      value: 0.49
    additional property: Speechiness
      type: PropertyValue
      value: 0.432
    additional property: Acousticness
      type: PropertyValue
      value: 0.28
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.874
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.505
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Kapela
type: MusicAlbum
date published: 2024-09-27
track: Śpiewamy Śpiewanki: Kapela
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231391
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Kapela
    type: MusicAlbum
    date published: 2024-09-27
  genre: children's music
  isrc code: PL75D2400031
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T13:34:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x787cfbb3a648fd74c7adc84150aeb2317c1c300932fb8dfdb3806e63c083ce4e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958749
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958749
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400031
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T16:35:56Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787cfbb3a648fd74c7adc84150aeb2317c1c300932fb8dfdb3806e63c083ce4e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400031.
    date published: 2026-07-19T16:35:56Z
  audio: Śpiewamy Śpiewanki: Kapela
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 78.999
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.862
    additional property: Energy
      type: PropertyValue
      value: 0.176
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.694
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.101
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.67
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.312
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Smaczki z paczki
type: MusicAlbum
date published: 2024-10-04

Śpiewamy Śpiewanki: Baranek
type: MusicAlbum
date published: 2024-10-11
track: Śpiewamy Śpiewanki: Baranek
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151374
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Baranek
    type: MusicAlbum
    date published: 2024-10-11
  genre: children's music
  isrc code: PL75D2400033
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T23:59:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x788ac3d03e7ed02168deaf154847582cbf8f0b31062d312ec5fd4bac7932494d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400033
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788ac3d03e7ed02168deaf154847582cbf8f0b31062d312ec5fd4bac7932494d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400033.
    date published: 2026-07-05T01:43:49Z
  audio: Śpiewamy Śpiewanki: Baranek
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 92.865
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.771
    additional property: Energy
      type: PropertyValue
      value: 0.347
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.628
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.284
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.236
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Małpka i źródełko
type: MusicAlbum
date published: 2024-10-24
track: Śpiewamy Śpiewanki: Małpka i źródełko
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238520
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Małpka i źródełko
    type: MusicAlbum
    date published: 2024-10-24
  genre: children's music
  isrc code: PL75D2400034
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T04:06:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeb52eab2af2e68aee5e475fc5ffdaa99c5f0c094e3a6a1d17fd0907b2a48a80b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958823
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958823
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400034
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T07:06:37Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb52eab2af2e68aee5e475fc5ffdaa99c5f0c094e3a6a1d17fd0907b2a48a80b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:06:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400034.
    date published: 2026-07-20T07:06:37Z
  audio: Śpiewamy Śpiewanki: Małpka i źródełko
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.846
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.9
    additional property: Energy
      type: PropertyValue
      value: 0.444
    additional property: Speechiness
      type: PropertyValue
      value: 0.115
    additional property: Acousticness
      type: PropertyValue
      value: 0.708
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.583
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.315
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Panda Wanda
type: MusicAlbum
date published: 2024-11-01
track: Panda Wanda
  type: MusicRecording
  duration: PT2M17S
  duration ms: 137646
  explicit: false
  by artist: Śpiewanki
  in album: Panda Wanda
    type: MusicAlbum
    date published: 2024-11-01
  genre: children's music
  isrc code: PL75D2200005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T08:52:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d6591e2a7a44a9cba595b0ee78762c0b148e49572fb5ed328d118108679202d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956500
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956500
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200005
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T13:55:21Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6591e2a7a44a9cba595b0ee78762c0b148e49572fb5ed328d118108679202d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200005.
    date published: 2026-07-03T13:55:21Z
  audio: Panda Wanda
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.823
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.631
    additional property: Energy
      type: PropertyValue
      value: 0.472
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.553
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.08
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.493
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.329
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Leniwy pies
type: MusicAlbum
date published: 2024-11-08
track: Śpiewamy Śpiewanki: Leniwy pies
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152380
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Leniwy pies
    type: MusicAlbum
    date published: 2024-11-08
  genre: children's music
  isrc code: PL75D2400035
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T23:00:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x147d4e9455a458b12f299afbc122d00fe13a511e10d3445b1f2da187a78b87f4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400035
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147d4e9455a458b12f299afbc122d00fe13a511e10d3445b1f2da187a78b87f4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400035.
    date published: 2026-07-05T01:12:41Z
  audio: Śpiewamy Śpiewanki: Leniwy pies
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 154.271
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.884
    additional property: Energy
      type: PropertyValue
      value: 0.547
    additional property: Speechiness
      type: PropertyValue
      value: 0.103
    additional property: Acousticness
      type: PropertyValue
      value: 0.368
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.048
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.5
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.824
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Gdyby mieć psa
type: MusicAlbum
date published: 2024-11-22
track: Śpiewamy Śpiewanki: Gdyby mieć psa
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192032
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Gdyby mieć psa
    type: MusicAlbum
    date published: 2024-11-22
  genre: children's music
  isrc code: PL75D2400036
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T21:27:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe5ee2a87c36c1cab47edb627e83ff1ced7f4fe655e4e1e3bbdebbe09c62a6d34
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958489
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958489
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400036
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T04:13:26Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ee2a87c36c1cab47edb627e83ff1ced7f4fe655e4e1e3bbdebbe09c62a6d34. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400036.
    date published: 2026-07-18T04:13:26Z
  audio: Śpiewamy Śpiewanki: Gdyby mieć psa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.04
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.729
    additional property: Energy
      type: PropertyValue
      value: 0.509
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.238
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.413
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.513
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.498
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Jak rozmawiać z psem
type: MusicAlbum
date published: 2024-11-29
track: Śpiewamy Śpiewanki: Jak rozmawiać z psem
  type: MusicRecording
  duration: PT1M30S
  duration ms: 90382
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Jak rozmawiać z psem
    type: MusicAlbum
    date published: 2024-11-29
  genre: children's music
  isrc code: PL75D2400037
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T19:44:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x39231c498905ee34ea73b75f1215cbb8bbb75995332340553a45cad0833f2684
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956551
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956551
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400037
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T21:18:05Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39231c498905ee34ea73b75f1215cbb8bbb75995332340553a45cad0833f2684. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400037.
    date published: 2026-07-03T21:18:05Z
  audio: Śpiewamy Śpiewanki: Jak rozmawiać z psem
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 159.817
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.787
    additional property: Energy
      type: PropertyValue
      value: 0.451
    additional property: Speechiness
      type: PropertyValue
      value: 0.243
    additional property: Acousticness
      type: PropertyValue
      value: 0.462
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.088
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.724
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.42
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śnieżne zamki
type: MusicAlbum
date published: 2024-12-06
track: Śnieżne zamki
  type: MusicRecording
  duration: PT2M6S
  duration ms: 126427
  explicit: false
  by artist: Śpiewanki
  in album: Śnieżne zamki
    type: MusicAlbum
    date published: 2024-12-06
  genre: children's music
  isrc code: PL75D2200009
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T11:28:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x709c94e2851ed44b144cc87b7649f214183466be2fd55666b655918629880cc7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956551
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956551
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200009
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T21:18:05Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709c94e2851ed44b144cc87b7649f214183466be2fd55666b655918629880cc7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2200009.
    date published: 2026-07-03T21:18:05Z
  audio: Śnieżne zamki
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.845
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.801
    additional property: Energy
      type: PropertyValue
      value: 0.495
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.784
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.179
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.726
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.338
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Trąba do góry
type: MusicAlbum
date published: 2024-12-19
track: Śpiewamy Śpiewanki: Trąba do góry
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160940
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Trąba do góry
    type: MusicAlbum
    date published: 2024-12-19
  genre: children's music
  isrc code: PL75D2400038
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T01:45:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9eb48c2063b950bb089756da971a2ddef5ddc5467dce26ae66cbcc68506ed82f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958350
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958350
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400038
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T04:48:04Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb48c2063b950bb089756da971a2ddef5ddc5467dce26ae66cbcc68506ed82f. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:48:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400038.
    date published: 2026-07-17T04:48:04Z
  audio: Śpiewamy Śpiewanki: Trąba do góry
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 172.332
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.614
    additional property: Energy
      type: PropertyValue
      value: 0.537
    additional property: Speechiness
      type: PropertyValue
      value: 0.164
    additional property: Acousticness
      type: PropertyValue
      value: 0.393
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.062
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.832
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.65
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Śpiewamy Śpiewanki: Dwaj Piraci
type: MusicAlbum
date published: 2024-12-27
track: Śpiewamy Śpiewanki: Dwaj Piraci
  type: MusicRecording
  duration: PT2M22S
  duration ms: 142968
  explicit: false
  by artist: Śpiewanki
  in album: Śpiewamy Śpiewanki: Dwaj Piraci
    type: MusicAlbum
    date published: 2024-12-27
  genre: children's music
  isrc code: PL75D2400039
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T21:22:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8d866ee63f201b3cd7e7c37a568640843b991e104dc0a69ad868eb860001b57c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956404
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956404
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400039
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T03:10:25Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d866ee63f201b3cd7e7c37a568640843b991e104dc0a69ad868eb860001b57c. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:10:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2400039.
    date published: 2026-07-17T03:10:25Z
  audio: Śpiewamy Śpiewanki: Dwaj Piraci
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.979
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.952
    additional property: Energy
      type: PropertyValue
      value: 0.361
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.293
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.075
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.896
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.44
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Czytaj ze Świerszczykiem
type: MusicAlbum
date published: 2025-04-21
track: Czytaj ze Świerszczykiem
  type: MusicRecording
  duration: PT2M29S
  duration ms: 149386
  explicit: false
  by artist: Śpiewanki
  in album: Czytaj ze Świerszczykiem
    type: MusicAlbum
    date published: 2025-04-21
  genre: children's music
  isrc code: PL75D2500006
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T20:23:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb704f9bd8f81e1e08106876150394d9895027ec93170907d91a36f2f4d1aa932
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958203
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958203
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2500006
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T23:25:45Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb704f9bd8f81e1e08106876150394d9895027ec93170907d91a36f2f4d1aa932. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL75D2500006.
    date published: 2026-07-15T23:25:45Z
  audio: Czytaj ze Świerszczykiem
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.917
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.794
    additional property: Energy
      type: PropertyValue
      value: 0.652
    additional property: Speechiness
      type: PropertyValue
      value: 0.074
    additional property: Acousticness
      type: PropertyValue
      value: 0.258
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.911
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.297
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major