Calvin Pritchard
type: MusicGroup
popularity: 3
followers: 546
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x103370f87dddad26771babdbd2b7549ea24536bee7b62c32eed6cac5c647ad63
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/639cb20c-d1fc-4bb7-bdd1-54f83af6c85e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/639cb20c-d1fc-4bb7-bdd1-54f83af6c85e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/639cb20c-d1fc-4bb7-bdd1-54f83af6c85e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x103370f87dddad26771babdbd2b7549ea24536bee7b62c32eed6cac5c647ad63","name":"Calvin Pritchard","registered_at":"2026-06-17T00:23:19Z","symbol":"NIM1222621","token_address":"0xdc38b4a07fd721dc94441878e380c673a15956aa","type":"artist","uuid":"639cb20c-d1fc-4bb7-bdd1-54f83af6c85e"}
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 0x103370f87dddad26771babdbd2b7549ea24536bee7b62c32eed6cac5c647ad63. 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/639cb20c-d1fc-4bb7-bdd1-54f83af6c85e.json and https://artists.proofprofile.net/proofs/artist/639cb20c-d1fc-4bb7-bdd1-54f83af6c85e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x103370f87dddad26771babdbd2b7549ea24536bee7b62c32eed6cac5c647ad63","name":"Calvin Pritchard","registered_at":"2026-06-17T00:23:19Z","symbol":"NIM1222621","token_address":"0xdc38b4a07fd721dc94441878e380c673a15956aa","type":"artist","uuid":"639cb20c-d1fc-4bb7-bdd1-54f83af6c85e"}
album: My Eternal Grave
  type: MusicAlbum
  date published: 2019-08-28
album: The One I Love
  type: MusicAlbum
  date published: 2020-06-16
album: Dreams & Thoughts
  type: MusicAlbum
  date published: 2020-07-11
album: Runaway
  type: MusicAlbum
  date published: 2020-09-04
album: Belong To You
  type: MusicAlbum
  date published: 2021-02-14
album: Good Things
  type: MusicAlbum
  date published: 2021-04-09
album: Turn Around
  type: MusicAlbum
  date published: 2021-05-07
album: Brotha Bleedin'
  type: MusicAlbum
  date published: 2021-06-04
album: TIME WAITS (FOR TYREECE PILOT)
  type: MusicAlbum
  date published: 2022-06-10
album: Lay Low
  type: MusicAlbum
  date published: 2022-07-15
album: Roll Round
  type: MusicAlbum
  date published: 2023-06-29
  track: Roll Round
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163917
    explicit: true
    by artist: Calvin Pritchard
    in album: Roll Round
      type: MusicAlbum
      date published: 2023-06-29
    isrc code: QZK6G2388466
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T10:10:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb680e800addd68ab499f224629bebf6ce323df1eb49a7e4ed6134fb0b371842c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2388466
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 0xb680e800addd68ab499f224629bebf6ce323df1eb49a7e4ed6134fb0b371842c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6G2388466.
      date published: 2026-07-08T03:20:19Z
    audio: Roll Round
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.736
      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: 0.524
      additional property: Energy
        type: PropertyValue
        value: 0.5
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.249
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.15
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.618
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.915
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Freee
  type: MusicAlbum
  date published: 2023-08-24
album: LOVE LOVE
  type: MusicAlbum
  date published: 2023-10-05
album: Find my way
  type: MusicAlbum
  date published: 2024-01-23
album: 23//24
  type: MusicAlbum
  date published: 2024-03-07
album: MOTIONZZZ
  type: MusicAlbum
  date published: 2024-05-01
album: 2MYHEAD
  type: MusicAlbum
  date published: 2024-05-08