Lil Calin
type: MusicGroup
popularity: 10
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd6743cada9ddf0c1b3756375fac2c8f85e51b1c65393ffddadff34a19968919
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/82a80893-2eb1-4385-a16f-490b39f4fc0e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82a80893-2eb1-4385-a16f-490b39f4fc0e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/82a80893-2eb1-4385-a16f-490b39f4fc0e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd6743cada9ddf0c1b3756375fac2c8f85e51b1c65393ffddadff34a19968919","name":"Lil Calin","registered_at":"2026-06-17T11:35:20Z","symbol":"NIM1382914","token_address":"0x87568bcb2bb375396fdb90c5d00fb992b73b6833","type":"artist","uuid":"82a80893-2eb1-4385-a16f-490b39f4fc0e"}
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 0xfd6743cada9ddf0c1b3756375fac2c8f85e51b1c65393ffddadff34a19968919. 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/82a80893-2eb1-4385-a16f-490b39f4fc0e.json and https://artists.proofprofile.net/proofs/artist/82a80893-2eb1-4385-a16f-490b39f4fc0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xfd6743cada9ddf0c1b3756375fac2c8f85e51b1c65393ffddadff34a19968919","name":"Lil Calin","registered_at":"2026-06-17T11:35:20Z","symbol":"NIM1382914","token_address":"0x87568bcb2bb375396fdb90c5d00fb992b73b6833","type":"artist","uuid":"82a80893-2eb1-4385-a16f-490b39f4fc0e"}