Marcus Eley
type: MusicGroup
popularity: 3
followers: 63
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8331e61082349b3856b0cb515ea67a7e6905a08a1bfca53f13e64f29fe4901f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcb4ed63-11fb-4502-ab38-1c102ae328b7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcb4ed63-11fb-4502-ab38-1c102ae328b7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bcb4ed63-11fb-4502-ab38-1c102ae328b7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8331e61082349b3856b0cb515ea67a7e6905a08a1bfca53f13e64f29fe4901f3","name":"Marcus Eley","registered_at":"2026-06-20T17:34:41Z","symbol":"NIM1669248","token_address":"0xd8af72316bb85945d3211fd91e60436ca0e81e47","type":"artist","uuid":"bcb4ed63-11fb-4502-ab38-1c102ae328b7"}
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 0x8331e61082349b3856b0cb515ea67a7e6905a08a1bfca53f13e64f29fe4901f3. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcb4ed63-11fb-4502-ab38-1c102ae328b7.json and https://artists.proofprofile.net/proofs/artist/bcb4ed63-11fb-4502-ab38-1c102ae328b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x8331e61082349b3856b0cb515ea67a7e6905a08a1bfca53f13e64f29fe4901f3","name":"Marcus Eley","registered_at":"2026-06-20T17:34:41Z","symbol":"NIM1669248","token_address":"0xd8af72316bb85945d3211fd91e60436ca0e81e47","type":"artist","uuid":"bcb4ed63-11fb-4502-ab38-1c102ae328b7"}
album: But Not Forgotten
  type: MusicAlbum
  date published: 2012-07-03
album: But Not Forgotten
  type: MusicAlbum
  date published: 2012-07-03
album: Perseverance
  type: MusicAlbum
  date published: 2023-09-15
album: Homage
  type: MusicAlbum
  date published: 2024-08-30
album: That’s a Different Groove (Remastered 2024)
  type: MusicAlbum
  date published: 2025-03-07
  track: Alto Saxophone Sonata (Arr. for Clarinet & Piano by Marcus Eley): II. Largo - Remastered 2024
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168369
    explicit: false
    by artist: Marcus Eley
    in album: That’s a Different Groove (Remastered 2024)
      type: MusicAlbum
      date published: 2025-03-07
    isrc code: USPMZ2511210
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:33:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4e80a9913923d343553e3999b0bf8b1e194e2d82a800d27bf49d9feaced4e4e9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959010
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959010
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPMZ2511210
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:33:43Z
    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 0x4e80a9913923d343553e3999b0bf8b1e194e2d82a800d27bf49d9feaced4e4e9. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:33:43Z), 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/USPMZ2511210.
      date published: 2026-07-21T15:33:43Z
    audio: Alto Saxophone Sonata (Arr. for Clarinet & Piano by Marcus Eley): II. Largo - Remastered 2024
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.62
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.2
      additional property: Energy
        type: PropertyValue
        value: 0.009
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.993
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.09
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.133
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.956
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major