Bass Clef
type: MusicGroup
popularity: 3
followers: 152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x691ef83c0fc2ea665c5ac9c0822c2e0586c9c69dc952af86f230bfbac68073db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67e7a02e-5bc1-4915-b3ac-2198bae76e4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67e7a02e-5bc1-4915-b3ac-2198bae76e4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/67e7a02e-5bc1-4915-b3ac-2198bae76e4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x691ef83c0fc2ea665c5ac9c0822c2e0586c9c69dc952af86f230bfbac68073db","name":"Bass Clef","registered_at":"2026-06-17T01:55:49Z","symbol":"NIM1244689","token_address":"0x8afae8c604a35a193db3ed7946c65c3031097733","type":"artist","uuid":"67e7a02e-5bc1-4915-b3ac-2198bae76e4f"}
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 0x691ef83c0fc2ea665c5ac9c0822c2e0586c9c69dc952af86f230bfbac68073db. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67e7a02e-5bc1-4915-b3ac-2198bae76e4f.json and https://artists.proofprofile.net/proofs/artist/67e7a02e-5bc1-4915-b3ac-2198bae76e4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x691ef83c0fc2ea665c5ac9c0822c2e0586c9c69dc952af86f230bfbac68073db","name":"Bass Clef","registered_at":"2026-06-17T01:55:49Z","symbol":"NIM1244689","token_address":"0x8afae8c604a35a193db3ed7946c65c3031097733","type":"artist","uuid":"67e7a02e-5bc1-4915-b3ac-2198bae76e4f"}
album: Magnetic Chapters
  type: MusicAlbum
  date published: 2021-08-06
  track: a glow on a floe
    type: MusicRecording
    duration: PT4M15S
    duration ms: 255257
    explicit: false
    by artist: Bass Clef
    in album: Magnetic Chapters
      type: MusicAlbum
      date published: 2021-08-06
    isrc code: GBHLW2101492
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T09:26:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7d4eac3f6eb3d1a4960ff9ef7a669dc760ccfcb2c269e1e4ec79f4a5236d38d1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHLW2101492
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x7d4eac3f6eb3d1a4960ff9ef7a669dc760ccfcb2c269e1e4ec79f4a5236d38d1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBHLW2101492.
      date published: 2026-07-04T11:19:20Z
    audio: a glow on a floe
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.91
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.539
      additional property: Energy
        type: PropertyValue
        value: 0.418
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.02
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.955
      additional property: Liveness
        type: PropertyValue
        value: 0.344
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.528
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.25
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major