Holmes Percussion
type: MusicGroup
popularity: 5
followers: 176
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d2d47b3b8c61ee185b09ca43bd9fa9c2b15f6313e2b215c60bdef4de3b2e5eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d171c3fb-82b5-4a9b-aa4a-c292a5a584da.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d171c3fb-82b5-4a9b-aa4a-c292a5a584da.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d171c3fb-82b5-4a9b-aa4a-c292a5a584da
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d2d47b3b8c61ee185b09ca43bd9fa9c2b15f6313e2b215c60bdef4de3b2e5eb","name":"Holmes Percussion","registered_at":"2026-06-21T01:15:06Z","symbol":"NIM1774374","token_address":"0xdc5032f36aa78e74666ec4ffcc0d6cdff8030715","type":"artist","uuid":"d171c3fb-82b5-4a9b-aa4a-c292a5a584da"}
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 0x8d2d47b3b8c61ee185b09ca43bd9fa9c2b15f6313e2b215c60bdef4de3b2e5eb. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d171c3fb-82b5-4a9b-aa4a-c292a5a584da.json and https://artists.proofprofile.net/proofs/artist/d171c3fb-82b5-4a9b-aa4a-c292a5a584da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x8d2d47b3b8c61ee185b09ca43bd9fa9c2b15f6313e2b215c60bdef4de3b2e5eb","name":"Holmes Percussion","registered_at":"2026-06-21T01:15:06Z","symbol":"NIM1774374","token_address":"0xdc5032f36aa78e74666ec4ffcc0d6cdff8030715","type":"artist","uuid":"d171c3fb-82b5-4a9b-aa4a-c292a5a584da"}
album: Holmes Percussion
  type: MusicAlbum
  date published: 2023-01-09
  track: Insomnia
    type: MusicRecording
    duration: PT6M27S
    duration ms: 387104
    explicit: false
    by artist: Holmes Percussion
    in album: Holmes Percussion
      type: MusicAlbum
      date published: 2023-01-09
    isrc code: USCGH2319809
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T15:42:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc07cc489cd9c984865138d97af5a5c95bd6f926921332ee9699c74a7d822144a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2319809
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0xc07cc489cd9c984865138d97af5a5c95bd6f926921332ee9699c74a7d822144a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGH2319809.
      date published: 2026-07-18T19:27:02Z
    audio: Insomnia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 85.356
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.367
      additional property: Energy
        type: PropertyValue
        value: 0.084
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.982
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.931
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.122
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.243
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: First EP
  type: MusicAlbum
  date published: 2024-03-01