Antonio Lettieri
type: MusicGroup
popularity: 7
followers: 158
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8dd79f3e52e02718bb66620c8d27644a6f299514761b10ced39ef085b59caab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba6b9a0b-6dc4-4afc-bb36-98cbef282681.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba6b9a0b-6dc4-4afc-bb36-98cbef282681.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba6b9a0b-6dc4-4afc-bb36-98cbef282681
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8dd79f3e52e02718bb66620c8d27644a6f299514761b10ced39ef085b59caab","name":"Antonio Lettieri","registered_at":"2026-06-20T16:48:41Z","symbol":"NIM1658113","token_address":"0x3fd6e16ef3008f21442ef3089214e6305782f295","type":"artist","uuid":"ba6b9a0b-6dc4-4afc-bb36-98cbef282681"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dd79f3e52e02718bb66620c8d27644a6f299514761b10ced39ef085b59caab. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba6b9a0b-6dc4-4afc-bb36-98cbef282681.json and https://artists.proofprofile.net/proofs/artist/ba6b9a0b-6dc4-4afc-bb36-98cbef282681.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd8dd79f3e52e02718bb66620c8d27644a6f299514761b10ced39ef085b59caab","name":"Antonio Lettieri","registered_at":"2026-06-20T16:48:41Z","symbol":"NIM1658113","token_address":"0x3fd6e16ef3008f21442ef3089214e6305782f295","type":"artist","uuid":"ba6b9a0b-6dc4-4afc-bb36-98cbef282681"}