Cuarteto Berna
type: MusicGroup
genre: cuarteto
popularity: 6
followers: 1112
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5f66bb2fa6f1ff87c0902a7cc220c05d98e90ea9811f77342b16da2f878edcc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4da580eb-958b-4978-91bc-d9ec50947589.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4da580eb-958b-4978-91bc-d9ec50947589.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4da580eb-958b-4978-91bc-d9ec50947589
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd5f66bb2fa6f1ff87c0902a7cc220c05d98e90ea9811f77342b16da2f878edcc","name":"Cuarteto Berna","registered_at":"2026-06-16T16:41:52Z","symbol":"NIM1112530","token_address":"0x8f836d05958e14b1c2eef8c4f1637372b6efa364","type":"artist","uuid":"4da580eb-958b-4978-91bc-d9ec50947589"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f66bb2fa6f1ff87c0902a7cc220c05d98e90ea9811f77342b16da2f878edcc. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4da580eb-958b-4978-91bc-d9ec50947589.json and https://artists.proofprofile.net/proofs/artist/4da580eb-958b-4978-91bc-d9ec50947589.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xd5f66bb2fa6f1ff87c0902a7cc220c05d98e90ea9811f77342b16da2f878edcc","name":"Cuarteto Berna","registered_at":"2026-06-16T16:41:52Z","symbol":"NIM1112530","token_address":"0x8f836d05958e14b1c2eef8c4f1637372b6efa364","type":"artist","uuid":"4da580eb-958b-4978-91bc-d9ec50947589"}
album: El Sensacional Cuarteto Berna (Volúmen 7)
  type: MusicAlbum
  date published: 1972
album: Lo Mejor de Berna (Volúmen 6)
  type: MusicAlbum
  date published: 1972
album: El Pibe de Oro (Volúmen 5)
  type: MusicAlbum
  date published: 1972-02-21
album: Otro Impacto de Berna (Volúmen 9)
  type: MusicAlbum
  date published: 1973
album: El Pibe de Oro Volúmen 10
  type: MusicAlbum
  date published: 1973-12-01
album: El Pibe de Oro (Volúmen 11)
  type: MusicAlbum
  date published: 1974-03-18
  track: La Fiesta de Blas
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161057
    explicit: false
    by artist: Cuarteto Berna
    in album: El Pibe de Oro (Volúmen 11)
      type: MusicAlbum
      date published: 1974-03-18
    genre: cuarteto
    isrc code: ARXP71607311
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:35:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf034499283a80333ee995eddd4e9ddaabdd1ce581968d9dc3dd51bd261d924bb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARXP71607311
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf034499283a80333ee995eddd4e9ddaabdd1ce581968d9dc3dd51bd261d924bb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARXP71607311.
      date published: 2026-07-05T01:12:41Z
    audio: La Fiesta de Blas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.111
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.696
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.3
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.518
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.966
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.141
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: El Pibe de Oro (Volúmen 11)
  type: MusicAlbum
  date published: 1974-03-18
album: El Pibe de Oro. Vol 13
  type: MusicAlbum
  date published: 1974-09-03
album: El Disco de Oro Para Berna Vol. 15
  type: MusicAlbum
  date published: 1974-12-31
album: El Pibe de Oro (Volúmen 14)
  type: MusicAlbum
  date published: 1975-12-01
album: El Pibe de Oro (Volúmen 16)
  type: MusicAlbum
  date published: 1976-12-01
album: Tropicalísimo (Volúmen 26)
  type: MusicAlbum
  date published: 1981-12-01
album: Esto... Si Que Se Pasó (Volúmen 8)
  type: MusicAlbum
  date published: 2020-06-12