Project Polaroid (tom c3 & kool keith)
type: MusicGroup
popularity: 4
followers: 1530
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe981cfaaf171d140d059033582736270068e92676f68441d9fc981ff72791466
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84bba334-742a-45c4-ab67-3a05e75e172c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84bba334-742a-45c4-ab67-3a05e75e172c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/84bba334-742a-45c4-ab67-3a05e75e172c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe981cfaaf171d140d059033582736270068e92676f68441d9fc981ff72791466","name":"Project Polaroid (tom c3 & kool keith)","registered_at":"2026-06-17T11:54:26Z","symbol":"NIM1387469","token_address":"0xca92b6456b6350c5ed278a0edf3b65de78c485bd","type":"artist","uuid":"84bba334-742a-45c4-ab67-3a05e75e172c"}
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 0xe981cfaaf171d140d059033582736270068e92676f68441d9fc981ff72791466. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84bba334-742a-45c4-ab67-3a05e75e172c.json and https://artists.proofprofile.net/proofs/artist/84bba334-742a-45c4-ab67-3a05e75e172c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xe981cfaaf171d140d059033582736270068e92676f68441d9fc981ff72791466","name":"Project Polaroid (tom c3 & kool keith)","registered_at":"2026-06-17T11:54:26Z","symbol":"NIM1387469","token_address":"0xca92b6456b6350c5ed278a0edf3b65de78c485bd","type":"artist","uuid":"84bba334-742a-45c4-ab67-3a05e75e172c"}
album: Project Polaroid (tomc3 & kool keith)
  type: MusicAlbum
  date published: 2006-03-16