Strašlivá Podívaná
type: MusicGroup
genre: folk
genre: medieval
popularity: 17
followers: 969
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1df44b973f8d64e039c3e79218be5d200dfda7f09ad1bea083100c6b7a3e49fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81a40fbb-45b4-47aa-877f-c186c1776b5b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81a40fbb-45b4-47aa-877f-c186c1776b5b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/81a40fbb-45b4-47aa-877f-c186c1776b5b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1df44b973f8d64e039c3e79218be5d200dfda7f09ad1bea083100c6b7a3e49fa","name":"Strašlivá Podívaná","registered_at":"2026-06-14T18:02:19Z","symbol":"NIM0532654","token_address":"0x1c493826e72c3ee5af3155a2a215e358f6cbd4bc","type":"artist","uuid":"81a40fbb-45b4-47aa-877f-c186c1776b5b"}
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 0x1df44b973f8d64e039c3e79218be5d200dfda7f09ad1bea083100c6b7a3e49fa. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81a40fbb-45b4-47aa-877f-c186c1776b5b.json and https://artists.proofprofile.net/proofs/artist/81a40fbb-45b4-47aa-877f-c186c1776b5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x1df44b973f8d64e039c3e79218be5d200dfda7f09ad1bea083100c6b7a3e49fa","name":"Strašlivá Podívaná","registered_at":"2026-06-14T18:02:19Z","symbol":"NIM0532654","token_address":"0x1c493826e72c3ee5af3155a2a215e358f6cbd4bc","type":"artist","uuid":"81a40fbb-45b4-47aa-877f-c186c1776b5b"}
album: Krajina mého srdce
  type: MusicAlbum
  date published: 2000-04-18
album: Údolí včel
  type: MusicAlbum
  date published: 2002-07-30
album: Čarovné bylinky
  type: MusicAlbum
  date published: 2005-06-20
album: Čokoláda
  type: MusicAlbum
  date published: 2008-06-01
  track: Zaklínačka
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226013
    explicit: false
    by artist: Strašlivá Podívaná
    in album: Čokoláda
      type: MusicAlbum
      date published: 2008-06-01
    genre: folk
    genre: medieval
    isrc code: CZA090807110
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T23:19:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x49b3a5a8fb72237bc726f55c7fa79b3ef0397f9b4806010f356b48e3f98c78b7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    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/CZA090807110
    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 0x49b3a5a8fb72237bc726f55c7fa79b3ef0397f9b4806010f356b48e3f98c78b7. 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/CZA090807110.
      date published: 2026-07-04T11:19:20Z
    audio: Zaklínačka
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 203.015
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.453
      additional property: Energy
        type: PropertyValue
        value: 0.594
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.6
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.512
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.283
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Tady a teď
  type: MusicAlbum
  date published: 2013-11-04
  track: Tady a teď
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193520
    explicit: false
    by artist: Strašlivá Podívaná
    in album: Tady a teď
      type: MusicAlbum
      date published: 2013-11-04
    genre: folk
    genre: medieval
    isrc code: CZA091310201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T08:26:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6b9244abbdc7a1f12a2b4a0599cc5f1e3c84d118cc63f8002905d2b5e46071de
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA091310201
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T10:47:44Z
    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 0x6b9244abbdc7a1f12a2b4a0599cc5f1e3c84d118cc63f8002905d2b5e46071de. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CZA091310201.
      date published: 2026-07-03T10:47:44Z
    audio: Tady a teď
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.099
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.501
      additional property: Energy
        type: PropertyValue
        value: 0.523
      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: Maria Rosa
album: Obrázky z cest

Speechiness
type: PropertyValue
value: 0.037

Acousticness
type: PropertyValue
value: 0.384

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.084

Valence (Positivity)
type: PropertyValue
value: 0.873

Loudness (dB)
type: PropertyValue
value: -5.303

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

Maria Rosa
type: MusicRecording
duration: PT3M45S
duration ms: 225693
explicit: false
by artist: Strašlivá Podívaná
in album: Tady a teď
  type: MusicAlbum
  date published: 2013-11-04
genre: folk
genre: medieval
isrc code: CZA091310202
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T19:54:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1744cc1c4079f45fddf2b4e99376b0a9f1f68f79740fc292a2f27312ac934ee3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958607
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958607
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA091310202
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T21:01:11Z
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 0x1744cc1c4079f45fddf2b4e99376b0a9f1f68f79740fc292a2f27312ac934ee3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CZA091310202.
  date published: 2026-07-18T21:01:11Z
audio: Maria Rosa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.04
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.546
  additional property: Energy
    type: PropertyValue
    value: 0.626
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.755
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.21
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.607
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.398
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Obrázky z cest
type: MusicAlbum
date published: 2019-12-13
track: Ohnivé ženy
  type: MusicRecording
  duration: PT2M42S
  duration ms: 162333
  explicit: false
  by artist: Strašlivá Podívaná
  in album: Obrázky z cest
    type: MusicAlbum
    date published: 2019-12-13
  genre: folk
  genre: medieval
  isrc code: CZA041946001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T19:01:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa0b8080d32ac94bb971a373822687d27378fbc16c91650f354acd8a63cf9868c
  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/CZA041946001
  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 0xa0b8080d32ac94bb971a373822687d27378fbc16c91650f354acd8a63cf9868c. 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/CZA041946001.
    date published: 2026-07-03T21:18:05Z
  audio: Ohnivé ženy
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 78.382
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.61
    additional property: Energy
      type: PropertyValue
      value: 0.654
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.511
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.274
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.866
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.927
    additional property: Key Name
      type: PropertyValue
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    additional property: Mode Name
      type: PropertyValue
      value: Minor