Cavern Sounds
type: MusicGroup
popularity: 2
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a112545c71cbf667d29f9fce46220caa5d01d266f439e4ff69051f55eb34c47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00cdbc98-79ff-4f9b-af9f-d4b55801d819.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00cdbc98-79ff-4f9b-af9f-d4b55801d819.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/00cdbc98-79ff-4f9b-af9f-d4b55801d819
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3a112545c71cbf667d29f9fce46220caa5d01d266f439e4ff69051f55eb34c47","name":"Cavern Sounds","registered_at":"2026-06-15T13:46:47Z","symbol":"NIM0727049","token_address":"0x2a943518dc19cfc3240034d897ac6f0466bdc91e","type":"artist","uuid":"00cdbc98-79ff-4f9b-af9f-d4b55801d819"}
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 0x3a112545c71cbf667d29f9fce46220caa5d01d266f439e4ff69051f55eb34c47. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00cdbc98-79ff-4f9b-af9f-d4b55801d819.json and https://artists.proofprofile.net/proofs/artist/00cdbc98-79ff-4f9b-af9f-d4b55801d819.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x3a112545c71cbf667d29f9fce46220caa5d01d266f439e4ff69051f55eb34c47","name":"Cavern Sounds","registered_at":"2026-06-15T13:46:47Z","symbol":"NIM0727049","token_address":"0x2a943518dc19cfc3240034d897ac6f0466bdc91e","type":"artist","uuid":"00cdbc98-79ff-4f9b-af9f-d4b55801d819"}
album: Cavern Sounds Play the Best of The Beatles
  type: MusicAlbum
  date published: 2023-04-14
  track: Penny Lane
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177373
    explicit: false
    by artist: Cavern Sounds
    in album: Cavern Sounds Play the Best of The Beatles
      type: MusicAlbum
      date published: 2023-04-14
    isrc code: AUXN22314428
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T18:03:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd6e91ebc1bf90b2d1dd3d9221e7cfc5cd04598a91ecbb070d867942399229ccf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22314428
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0xd6e91ebc1bf90b2d1dd3d9221e7cfc5cd04598a91ecbb070d867942399229ccf. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AUXN22314428.
      date published: 2026-07-05T01:43:49Z
    audio: Penny Lane
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.262
      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: 0.809
      additional property: Energy
        type: PropertyValue
        value: 0.713
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.379
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.063
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.386
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.734
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major