Greg Martell
type: MusicGroup
popularity: 7
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37345a5bedb670fde3dd21da7064ae79b2a0e92a9b5331334d37ff2d4cae2db4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d54d7dc-1ea5-4523-935f-7a88191cd5db.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d54d7dc-1ea5-4523-935f-7a88191cd5db.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0d54d7dc-1ea5-4523-935f-7a88191cd5db
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x37345a5bedb670fde3dd21da7064ae79b2a0e92a9b5331334d37ff2d4cae2db4","name":"Greg Martell","registered_at":"2026-06-15T18:13:37Z","symbol":"NIM0790737","token_address":"0xf4da1edb3a83b7479b2c15ad141e0287b78d9568","type":"artist","uuid":"0d54d7dc-1ea5-4523-935f-7a88191cd5db"}
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 0x37345a5bedb670fde3dd21da7064ae79b2a0e92a9b5331334d37ff2d4cae2db4. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d54d7dc-1ea5-4523-935f-7a88191cd5db.json and https://artists.proofprofile.net/proofs/artist/0d54d7dc-1ea5-4523-935f-7a88191cd5db.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T04:55:23Z
  text: {"copyright_id":"0x37345a5bedb670fde3dd21da7064ae79b2a0e92a9b5331334d37ff2d4cae2db4","name":"Greg Martell","registered_at":"2026-06-15T18:13:37Z","symbol":"NIM0790737","token_address":"0xf4da1edb3a83b7479b2c15ad141e0287b78d9568","type":"artist","uuid":"0d54d7dc-1ea5-4523-935f-7a88191cd5db"}
album: Leader of the Band
  type: MusicAlbum
  date published: 1981
album: Silent Hero
  type: MusicAlbum
  date published: 2023-12-20
  track: Silent Hero
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224189
    explicit: false
    by artist: Greg Martell
    in album: Silent Hero
      type: MusicAlbum
      date published: 2023-12-20
    isrc code: GBMA22331768
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T02:31:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8582b68fec7228dd79ba6be99531d0988b7994e8cdff9c1dc6d028e52df882c2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA22331768
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x8582b68fec7228dd79ba6be99531d0988b7994e8cdff9c1dc6d028e52df882c2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA22331768 — a six-check JSON result.
      date published: 2026-07-06T06:56:49Z
    audio: Silent Hero
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.991
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.528
      additional property: Energy
        type: PropertyValue
        value: 0.498
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.205
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.228
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.478
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.379
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: It Must Start with You
  type: MusicAlbum
  date published: 2023-12-31
album: Vincent
  type: MusicAlbum
  date published: 2024-06-18
album: Molly Bawn
  type: MusicAlbum
  date published: 2024-09-07
album: Be There for You
  type: MusicAlbum
  date published: 2024-12-23
album: In Times Like These
  type: MusicAlbum
  date published: 2025-03-15