Sastre.
type: MusicGroup
genre: power pop
popularity: 5
followers: 162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb56ae0aa2d87ee4974c8c30c77c4055284ee1274797ea1a485fc2740430491f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ff798c8-038c-4118-8d7f-9d6703890141.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ff798c8-038c-4118-8d7f-9d6703890141.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ff798c8-038c-4118-8d7f-9d6703890141
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
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 0xb56ae0aa2d87ee4974c8c30c77c4055284ee1274797ea1a485fc2740430491f6. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ff798c8-038c-4118-8d7f-9d6703890141.json and https://artists.proofprofile.net/proofs/artist/0ff798c8-038c-4118-8d7f-9d6703890141.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:05:56Z
album: Mis Protagonistas
  type: MusicAlbum
  date published: 2021-11-24
album: Conversaciones
  type: MusicAlbum
  date published: 2021-12-15
album: No vuelvas (A rozarme los labios)
  type: MusicAlbum
  date published: 2021-12-22
album: Estación. Ida y Vuelta
  type: MusicAlbum
  date published: 2021-12-22
album: La Guapura
  type: MusicAlbum
  date published: 2022-11-25
album: Gijón sin ti
  type: MusicAlbum
  date published: 2024-02-02
album: Caja negra
  type: MusicAlbum
  date published: 2024-03-06
album: Funeres s/n
  type: MusicAlbum
  date published: 2024-04-12
album: Úsame
  type: MusicAlbum
  date published: 2024-05-14
album: Familia de Sastre
  type: MusicAlbum
  date published: 2024-05-17
album: Mis ojos duermen (Felices los tres)
  type: MusicAlbum
  date published: 2025-02-28
  track: Mis ojos duermen (Felices los tres)
    type: MusicRecording
    duration: PT4M56S
    duration ms: 296500
    explicit: false
    by artist: Sastre.
    in album: Mis ojos duermen (Felices los tres)
      type: MusicAlbum
      date published: 2025-02-28
    genre: power pop
    isrc code: ES6172525039
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T09:37:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x80f1ecf3cd49677216862feb89a3293bc4323a52abb62331ea80c3dc7366bb53
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6172525039
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x80f1ecf3cd49677216862feb89a3293bc4323a52abb62331ea80c3dc7366bb53. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES6172525039.
      date published: 2026-07-03T19:59:51Z
    audio: Mis ojos duermen (Felices los tres)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 199.904
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.365
      additional property: Energy
        type: PropertyValue
        value: 0.51
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.573
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.338
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.826
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major