40 Acres
type: MusicGroup
popularity: 4
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7c897686c1236f359acdb4a4ce88f17bd9b6305332d8bb492d357c387a348ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd22c2d4-3030-4bbd-9e81-0602f787223a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd22c2d4-3030-4bbd-9e81-0602f787223a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd22c2d4-3030-4bbd-9e81-0602f787223a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe7c897686c1236f359acdb4a4ce88f17bd9b6305332d8bb492d357c387a348ed","name":"40 Acres","registered_at":"2026-06-21T05:24:38Z","symbol":"NIM1833185","token_address":"0x856b6ac892c10c21ecd0d118d25545a1b7707e99","type":"artist","uuid":"dd22c2d4-3030-4bbd-9e81-0602f787223a"}
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 0xe7c897686c1236f359acdb4a4ce88f17bd9b6305332d8bb492d357c387a348ed. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd22c2d4-3030-4bbd-9e81-0602f787223a.json and https://artists.proofprofile.net/proofs/artist/dd22c2d4-3030-4bbd-9e81-0602f787223a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xe7c897686c1236f359acdb4a4ce88f17bd9b6305332d8bb492d357c387a348ed","name":"40 Acres","registered_at":"2026-06-21T05:24:38Z","symbol":"NIM1833185","token_address":"0x856b6ac892c10c21ecd0d118d25545a1b7707e99","type":"artist","uuid":"dd22c2d4-3030-4bbd-9e81-0602f787223a"}
album: 2 Piece
  type: MusicAlbum
  date published: 2020-10-02
album: F.U.T.S
  type: MusicAlbum
  date published: 2020-11-06