Sparrow & Bird
type: MusicGroup
genre: jazz
popularity: 48
followers: 1352
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e05122ed83a3f72daf32475b3738f4b9569b8a0b85850e51289e94db9afda65
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90d1561d-59bb-4ee6-b49f-028c8b881c26.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90d1561d-59bb-4ee6-b49f-028c8b881c26.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90d1561d-59bb-4ee6-b49f-028c8b881c26
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3e05122ed83a3f72daf32475b3738f4b9569b8a0b85850e51289e94db9afda65","name":"Sparrow & Bird","registered_at":"2026-06-12T04:34:33Z","symbol":"NIM0188310","token_address":"0x3a7fe4329153f596048182a38308febb616f5e1d","type":"artist","uuid":"90d1561d-59bb-4ee6-b49f-028c8b881c26"}
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 0x3e05122ed83a3f72daf32475b3738f4b9569b8a0b85850e51289e94db9afda65. 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/90d1561d-59bb-4ee6-b49f-028c8b881c26.json and https://artists.proofprofile.net/proofs/artist/90d1561d-59bb-4ee6-b49f-028c8b881c26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x3e05122ed83a3f72daf32475b3738f4b9569b8a0b85850e51289e94db9afda65","name":"Sparrow & Bird","registered_at":"2026-06-12T04:34:33Z","symbol":"NIM0188310","token_address":"0x3a7fe4329153f596048182a38308febb616f5e1d","type":"artist","uuid":"90d1561d-59bb-4ee6-b49f-028c8b881c26"}
album: Litania
  type: MusicAlbum
  date published: 2020-09-25
album: Santa Baby
  type: MusicAlbum
  date published: 2020-09-29
album: Little Bighorn
  type: MusicAlbum
  date published: 2021-09-10
album: Le jardin de l'espoir
  type: MusicAlbum
  date published: 2023-02-24
album: Jazz Noir
  type: MusicAlbum
  date published: 2023-08-10
album: It´s beginning to look a lot like christmas
  type: MusicAlbum
  date published: 2023-10-05
album: Little Bighorn
  type: MusicAlbum
  date published: 2024-02-09
album: Embraced by Night
  type: MusicAlbum
  date published: 2024-03-01
album: Moonlit Love
  type: MusicAlbum
  date published: 2024-04-19
album: Sunset Silhouettes
  type: MusicAlbum
  date published: 2024-05-03
  track: Sunset Silhouettes
    type: MusicRecording
    duration: PT2M58S
    duration ms: 178359
    explicit: false
    by artist: Sparrow & Bird
    in album: Sunset Silhouettes
      type: MusicAlbum
      date published: 2024-05-03
    genre: jazz
    isrc code: SE69Z2409563
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T03:29:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7ef77dbd1b87c5cd1561709affb78cbc9f3f315f82610883c207afb77442ab5b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE69Z2409563
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T06:32:09Z
    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 0x7ef77dbd1b87c5cd1561709affb78cbc9f3f315f82610883c207afb77442ab5b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:32:09Z), 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/SE69Z2409563.
      date published: 2026-07-20T06:32:09Z
    audio: Sunset Silhouettes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.204
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.479
      additional property: Energy
        type: PropertyValue
        value: 0.122
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.836
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.808
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.15
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.53
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: A Letter to Yesterday
  type: MusicAlbum
  date published: 2024-10-11
album: Pretending We're Alone
  type: MusicAlbum
  date published: 2024-11-29
album: Through Times
  type: MusicAlbum
  date published: 2025-01-10
album: Retake
  type: MusicAlbum
  date published: 2025-01-14
album: 100 Barz
  type: MusicAlbum
  date published: 2025-01-14