Choir "Sōla"
type: MusicGroup
genre: choral
popularity: 7
followers: 155
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a2ec918518cc2b77853ff4facb00ecf62053b32fc7647b91cd92d0e0c90153f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953854
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953854
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01e5660d-e54d-442b-a0a6-6f205e9e778d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01e5660d-e54d-442b-a0a6-6f205e9e778d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/01e5660d-e54d-442b-a0a6-6f205e9e778d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:16:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a2ec918518cc2b77853ff4facb00ecf62053b32fc7647b91cd92d0e0c90153f","name":"Choir \"Sōla\"","registered_at":"2026-06-15T14:23:00Z","symbol":"NIM0735693","token_address":"0xf8997ac7ee1a09017df243740eee814c67f15fb9","type":"artist","uuid":"01e5660d-e54d-442b-a0a6-6f205e9e778d"}
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 0x4a2ec918518cc2b77853ff4facb00ecf62053b32fc7647b91cd92d0e0c90153f. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01e5660d-e54d-442b-a0a6-6f205e9e778d.json and https://artists.proofprofile.net/proofs/artist/01e5660d-e54d-442b-a0a6-6f205e9e778d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x4a2ec918518cc2b77853ff4facb00ecf62053b32fc7647b91cd92d0e0c90153f","name":"Choir \"Sōla\"","registered_at":"2026-06-15T14:23:00Z","symbol":"NIM0735693","token_address":"0xf8997ac7ee1a09017df243740eee814c67f15fb9","type":"artist","uuid":"01e5660d-e54d-442b-a0a6-6f205e9e778d"}
album: Dziedot Dzimu, Dziedot Augu
  type: MusicAlbum
  date published: 2019-06-08
  track: Pūt, vējiņi!
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223722
    explicit: false
    by artist: Choir "Sōla"
    in album: Dziedot Dzimu, Dziedot Augu
      type: MusicAlbum
      date published: 2019-06-08
    genre: choral
    isrc code: QZFYX1978477
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:59:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2163881fa6485ef08eeb9ef07d36a4f2f78231f3347434aceedb7611c1de6a1b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958153
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958153
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX1978477
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:00:17Z
    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 0x2163881fa6485ef08eeb9ef07d36a4f2f78231f3347434aceedb7611c1de6a1b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:00:17Z), 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/QZFYX1978477.
      date published: 2026-07-15T14:00:17Z
    audio: Pūt, vējiņi!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.835
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.166
      additional property: Energy
        type: PropertyValue
        value: 0.147
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.991
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.314
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.057
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major