La Leyenda
type: MusicGroup
description: La Leyenda (English: The Legend) is the name of the third box set from the Tejano pop singer Selena that was released by Capitol Latin/EMI and Q-Productions labels. The album was released on March 9,
popularity: 23
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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 0x4c4fbaeccc7ec0d5671fc417aaa2e0874b7de44afda300ca9c42902b77e04199. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcc6e8af-f475-4bd6-88c3-4fcbf93101ef.json and https://artists.proofprofile.net/proofs/artist/dcc6e8af-f475-4bd6-88c3-4fcbf93101ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
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album: 14 de noviembre
  type: MusicAlbum
  date published: 2024-11-01
  track: 14 de noviembre
album: Contigo
  type: MusicAlbum
  date published: 2024-11-08
  track: Contigo

14 de noviembre
type: MusicRecording
duration: PT4M32S
duration ms: 272169
explicit: false
by artist: La Leyenda
in album: 14 de noviembre
  type: MusicAlbum
  date published: 2024-11-01
popularity: 27
isrc code: ES71G2427472
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additional property: OTSTimestamp
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  value: 2026-06-13T13:32:09+00:00
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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  value: true
additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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  value: 2026-06-13T13:32:09+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 0xb4a5e8226c4e4a11dba3cdad1620aeed3d4a3838c7d4c8f4aa819eeae0de44fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES71G2427472.
  date published: 2026-06-13T15:41:10Z
audio: 14 de noviembre
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  additional property: Time Signature
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    value: 5
  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.939
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.517
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
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Contigo
type: MusicRecording
duration: PT3M46S
duration ms: 226988
explicit: false
by artist: La Leyenda
in album: Contigo
  type: MusicAlbum
  date published: 2024-11-08
popularity: 23
isrc code: ES71G2427475
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b119a468620e16fe03819069633473a090df88ce5be8ede20a68a130924b686. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES71G2427475.
  date published: 2026-06-13T17:25:41Z
audio: Contigo
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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    value: 0.824
  additional property: Instrumentalness
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    value: 0.007
  additional property: Liveness
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