Cuarteto Pahuatlán
type: MusicGroup
popularity: 2
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd35f7c915cc24363e7e4abb687db6718ab1d3138f843c9bbfa938b1a2504d990
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/312ba347-0621-4d51-8f92-261c2a3f34ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/312ba347-0621-4d51-8f92-261c2a3f34ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/312ba347-0621-4d51-8f92-261c2a3f34ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd35f7c915cc24363e7e4abb687db6718ab1d3138f843c9bbfa938b1a2504d990","name":"Cuarteto Pahuatlán","registered_at":"2026-06-16T06:43:54Z","symbol":"NIM0969846","token_address":"0x716faf88b11119ea0edd4aa90bee6fc8c892677f","type":"artist","uuid":"312ba347-0621-4d51-8f92-261c2a3f34ff"}
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 0xd35f7c915cc24363e7e4abb687db6718ab1d3138f843c9bbfa938b1a2504d990. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/312ba347-0621-4d51-8f92-261c2a3f34ff.json and https://artists.proofprofile.net/proofs/artist/312ba347-0621-4d51-8f92-261c2a3f34ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xd35f7c915cc24363e7e4abb687db6718ab1d3138f843c9bbfa938b1a2504d990","name":"Cuarteto Pahuatlán","registered_at":"2026-06-16T06:43:54Z","symbol":"NIM0969846","token_address":"0x716faf88b11119ea0edd4aa90bee6fc8c892677f","type":"artist","uuid":"312ba347-0621-4d51-8f92-261c2a3f34ff"}
album: Alegría Huasteca, Vol. 4
  type: MusicAlbum
  date published: 2020-07-21
  track: La Presumida de Puebla
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176709
    explicit: false
    by artist: Cuarteto Pahuatlán
    in album: Alegría Huasteca, Vol. 4
      type: MusicAlbum
      date published: 2020-07-21
    isrc code: QZHZ62014750
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:42:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x936fcfaae47b2f7f1525987680429487d552e1064dc1b380fb14516c55708174
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62014750
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:55:50Z
    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 0x936fcfaae47b2f7f1525987680429487d552e1064dc1b380fb14516c55708174. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T13:55:50Z), 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/QZHZ62014750.
      date published: 2026-07-20T13:55:50Z
    audio: La Presumida de Puebla
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.445
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.533
      additional property: Energy
        type: PropertyValue
        value: 0.414
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.036
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.337
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.64
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.257
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: La Petenera
  type: MusicAlbum
  date published: 2020-07-21
album: El Hidalguense
  type: MusicAlbum
  date published: 2020-07-21
album: El Rebozo
  type: MusicAlbum
  date published: 2020-07-21