María José Pérez
type: MusicGroup
genre: flamenco
popularity: 8
followers: 270
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additional property: OTSBitcoinBlock
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde4e3024ecbca91315a7a515e9bbc6af25506d1a04ba36306d5bcfd24c301ac. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4fe891e-bb9c-491b-b473-1c9d24636fcf.json and https://artists.proofprofile.net/proofs/artist/a4fe891e-bb9c-491b-b473-1c9d24636fcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
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album: De la Luz del Agua
  type: MusicAlbum
  date published: 2018-01-01
album: Trazos
  type: MusicAlbum
  date published: 2018-01-24
album: Almohadita de Flores
  type: MusicAlbum
  date published: 2020-12-22
album: Cuando el Fuego Abrasa
  type: MusicAlbum
  date published: 2024-04-05
track: Para Irme Al Cielo Contigo

Para Irme Al Cielo Contigo
type: MusicRecording
duration: PT1M37S
duration ms: 97373
explicit: false
by artist: Jose León
by artist: María José Pérez
in album: Cien Pisadas hasta la Aldea
  type: MusicAlbum
  date published: 2025-02-21
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4bb01fd2c290937a5277ad6b7d78643a18f8a2a34bb523908c880cab60f4b1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEYX82242456.
  date published: 2026-07-02T05:09:12Z
audio: Para Irme Al Cielo Contigo
  type: AudioObject
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  additional property: Musical Key
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  additional property: Loudness (dB)
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  additional property: Key Name
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