El Cubano
type: MusicGroup
genre: tropical music
popularity: 2
followers: 2597
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc62c90eb1b7013629e2279823a764280a1c690f2da4e3125fcb769043a1d181b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d8ea27d-6a02-4238-94dd-0cb5fb89b1f7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d8ea27d-6a02-4238-94dd-0cb5fb89b1f7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d8ea27d-6a02-4238-94dd-0cb5fb89b1f7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc62c90eb1b7013629e2279823a764280a1c690f2da4e3125fcb769043a1d181b","name":"El Cubano","registered_at":"2026-06-20T04:33:41Z","symbol":"NIM1512934","token_address":"0x8dbef7aae704d22826294e1be7cb1dc7e1143135","type":"artist","uuid":"9d8ea27d-6a02-4238-94dd-0cb5fb89b1f7"}
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 0xc62c90eb1b7013629e2279823a764280a1c690f2da4e3125fcb769043a1d181b. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d8ea27d-6a02-4238-94dd-0cb5fb89b1f7.json and https://artists.proofprofile.net/proofs/artist/9d8ea27d-6a02-4238-94dd-0cb5fb89b1f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xc62c90eb1b7013629e2279823a764280a1c690f2da4e3125fcb769043a1d181b","name":"El Cubano","registered_at":"2026-06-20T04:33:41Z","symbol":"NIM1512934","token_address":"0x8dbef7aae704d22826294e1be7cb1dc7e1143135","type":"artist","uuid":"9d8ea27d-6a02-4238-94dd-0cb5fb89b1f7"}
album: Esta E La Vida
  type: MusicAlbum
  date published: 1997-01-01
album: Esta e la Vida (Club Mixes)
  type: MusicAlbum
  date published: 1997-02-05
album: Go - Go Mueve Mueve
  type: MusicAlbum
  date published: 1998-09-15
album: Samba Nueva
  type: MusicAlbum
  date published: 1998-09-22
track: Música Maestro

Música Maestro
type: MusicRecording
duration: PT3M34S
duration ms: 214693
explicit: false
by artist: Grupo Cubano Uruguay
by artist: El Cubano
in album: Palo y Palo a Pura Plena Uruguay Vol.1
  type: MusicAlbum
  date published: 1998-11-05
isrc code: UYS059900278
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:48:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x386ab778526e95031966bd04cc771772a837a25e96a4154f2ba4e3bfc26a18e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957050
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYS059900278
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:41:13Z
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: 957050
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T14:41:13+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 0x386ab778526e95031966bd04cc771772a837a25e96a4154f2ba4e3bfc26a18e4. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/UYS059900278.
  date published: 2026-07-07T14:41:13Z
audio: Música Maestro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.095
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.533
  additional property: Energy
    type: PropertyValue
    value: 0.714
  additional property: Speechiness
    type: PropertyValue
    value: 0.32
  additional property: Acousticness
    type: PropertyValue
    value: 0.354
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.265
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.558
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.617
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major