Margita Ślizowska
type: MusicGroup
popularity: 7
followers: 144
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82d349b242cdb05bceec2497c003998b06b23756df012957047485b9734734dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0bff9d7-59ec-434a-861b-f7232aa86fe3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0bff9d7-59ec-434a-861b-f7232aa86fe3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b0bff9d7-59ec-434a-861b-f7232aa86fe3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x82d349b242cdb05bceec2497c003998b06b23756df012957047485b9734734dd","name":"Margita Ślizowska","registered_at":"2026-06-20T12:10:45Z","symbol":"NIM1609934","token_address":"0xcc1ae45750fdef9bacaa6adecc47c193286c6191","type":"artist","uuid":"b0bff9d7-59ec-434a-861b-f7232aa86fe3"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d349b242cdb05bceec2497c003998b06b23756df012957047485b9734734dd. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0bff9d7-59ec-434a-861b-f7232aa86fe3.json and https://artists.proofprofile.net/proofs/artist/b0bff9d7-59ec-434a-861b-f7232aa86fe3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x82d349b242cdb05bceec2497c003998b06b23756df012957047485b9734734dd","name":"Margita Ślizowska","registered_at":"2026-06-20T12:10:45Z","symbol":"NIM1609934","token_address":"0xcc1ae45750fdef9bacaa6adecc47c193286c6191","type":"artist","uuid":"b0bff9d7-59ec-434a-861b-f7232aa86fe3"}
album: pamieta… My o Osieckiej
  type: MusicAlbum
  date published: 2010-12-18
album: Muza Szczęśliwości, piosenki pewnego Architekta
  type: MusicAlbum
  date published: 2012-01-01
album: Niemen - rzeka wspomnień
  type: MusicAlbum
  date published: 2021-12-31
track: Sanatorium
  type: MusicRecording
  duration: PT3M25S
  duration ms: 205213
  explicit: false
  by artist: Margita Ślizowska
  by artist: Wiktor Zborowski
  by artist: Mirosław Czyżykiewicz
  by artist: Magdalena Piotrowska
  by artist: Magdalena Kumorek
  in album: Jerzy Satanowski: Antologia
    type: MusicAlbum
    date published: 2016-06-27
  isrc code: PLB171600264
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T09:23:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x65428247474d8dba2b4017393293fe7bb21bd295a0da400a689b477c3a027aa3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960240
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960240
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB171600264
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T09:57:33Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65428247474d8dba2b4017393293fe7bb21bd295a0da400a689b477c3a027aa3. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/PLB171600264.
    date published: 2026-07-30T09:57:33Z
  audio: Sanatorium
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.844
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.765
    additional property: Energy
      type: PropertyValue
      value: 0.559
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.6
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.863
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.452
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.254
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Ballada o dzieciństwie
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256986
  explicit: false
  by artist: Margita Ślizowska
  by artist: Adam Nowak
  by artist: Mirosław Baka
  by artist: Mariusz Kiljan
  by artist: Mirosław Czyżykiewicz
  by artist: Beata Lerach
  in album: Bardowie i poeci - Włodzimierz Wysocki
    type: MusicAlbum
    date published: 2018-10-12
  isrc code: PLB170802002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T21:49:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfaadf0f4718e268020c6ccd7813ad9bfdb561eb9b686b09b566fc1f2f08482d6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960153
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960153
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB170802002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T21:57:12Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaadf0f4718e268020c6ccd7813ad9bfdb561eb9b686b09b566fc1f2f08482d6. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/PLB170802002.
    date published: 2026-07-29T21:57:12Z
  audio: Ballada o dzieciństwie
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.854
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.439
    additional property: Energy
      type: PropertyValue
      value: 0.636
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Piosenka o nieboszczykach

Speechiness
type: PropertyValue
value: 0.065

Acousticness
type: PropertyValue
value: 0.763

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.161

Valence (Positivity)
type: PropertyValue
value: 0.521

Loudness (dB)
type: PropertyValue
value: -10.382

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Piosenka o nieboszczykach
type: MusicRecording
duration: PT3M52S
duration ms: 232893
explicit: false
by artist: Margita Ślizowska
by artist: Beata Lerach
by artist: Anna Ozner
by artist: Magdalena Piotrowska
in album: Bardowie i poeci - Włodzimierz Wysocki
  type: MusicAlbum
  date published: 2018-10-12
isrc code: PLB170801990
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T21:30:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5ec0cdf3075a51d3f17d1220163cae2da389c1a7b87f83ce424ea4ca0205aca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960150
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960150
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB170801990
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:51:49Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ec0cdf3075a51d3f17d1220163cae2da389c1a7b87f83ce424ea4ca0205aca. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/PLB170801990.
  date published: 2026-07-29T21:51:49Z
audio: Piosenka o nieboszczykach
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.222
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.534
  additional property: Energy
    type: PropertyValue
    value: 0.309
  additional property: Speechiness
    type: PropertyValue
    value: 0.199
  additional property: Acousticness
    type: PropertyValue
    value: 0.86
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.183
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.502
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.841
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major