La Marelu
type: MusicGroup
genre: flamenco
popularity: 6
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcaf09554089353f9d6be666149abaae79ffed503bad3763d2982908e2a805c3d
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/952cb232-13ba-4dcd-8522-983da8521e78.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/952cb232-13ba-4dcd-8522-983da8521e78
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
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  value: {"copyright_id":"0xcaf09554089353f9d6be666149abaae79ffed503bad3763d2982908e2a805c3d","name":"La Marelu","registered_at":"2026-06-17T17:42:03Z","symbol":"NIM1470362","token_address":"0x7c3cf89d95799c1cafbd6c39a54d7dd64366b245","type":"artist","uuid":"952cb232-13ba-4dcd-8522-983da8521e78"}
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 0xcaf09554089353f9d6be666149abaae79ffed503bad3763d2982908e2a805c3d. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/952cb232-13ba-4dcd-8522-983da8521e78.json and https://artists.proofprofile.net/proofs/artist/952cb232-13ba-4dcd-8522-983da8521e78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xcaf09554089353f9d6be666149abaae79ffed503bad3763d2982908e2a805c3d","name":"La Marelu","registered_at":"2026-06-17T17:42:03Z","symbol":"NIM1470362","token_address":"0x7c3cf89d95799c1cafbd6c39a54d7dd64366b245","type":"artist","uuid":"952cb232-13ba-4dcd-8522-983da8521e78"}
album: La Marelu
  type: MusicAlbum
  date published: 2022-10-28
album: Con la Guitarra de Paco Cepero
  type: MusicAlbum
  date published: 2022-10-31
  track: De Cáceres a Badajoz
album: Con las Guitarras de Paco Cepero, Enrique de Melchor
  type: MusicAlbum
  date published: 2022-11-30
album: Jaleos Con la Marelu
  type: MusicAlbum
  date published: 2022-12-01
  track: Yo No Se Que Hacer
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201553
    explicit: false
    by artist: La Marelu
    in album: Jaleos Con la Marelu
      type: MusicAlbum
      date published: 2022-12-01
    genre: flamenco
    isrc code: ES5372210088
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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      type: PropertyValue
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      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5372210088
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0xbf56fa2597b529fd05968ebe9163c11c5a1025dae8cc62750b01a75dc0abf45e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES5372210088.
      date published: 2026-07-18T19:27:02Z
    audio: Yo No Se Que Hacer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.578
      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: 0.599
      additional property: Energy
        type: PropertyValue
        value: 0.588
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.687
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.035
      additional property: Liveness
        type: PropertyValue
        value: 0.263
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.839
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.249
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major

De Cáceres a Badajoz
type: MusicRecording
duration: PT3M26S
duration ms: 206933
explicit: false
by artist: La Marelu
in album: Con la Guitarra de Paco Cepero
  type: MusicAlbum
  date published: 2022-10-31
genre: flamenco
isrc code: ES5372210045
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:03:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe842f1b49289add5edda979bb60b7cd2475311efcffd69039b3a6b5af2fd4cc7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5372210045
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe842f1b49289add5edda979bb60b7cd2475311efcffd69039b3a6b5af2fd4cc7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5372210045.
  date published: 2026-07-08T03:22:41Z
audio: De Cáceres a Badajoz
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.733
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.539
  additional property: Energy
    type: PropertyValue
    value: 0.417
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.828
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.723
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.682
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.44
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major