Roger Pi
type: MusicGroup
popularity: 3
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdbae96616efcc18a62a8f42e7381b01cf557988b6c379d86ae5de289142345b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e731a01b-84dc-4ecb-afc2-2798a7ea39ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e731a01b-84dc-4ecb-afc2-2798a7ea39ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e731a01b-84dc-4ecb-afc2-2798a7ea39ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdbae96616efcc18a62a8f42e7381b01cf557988b6c379d86ae5de289142345b4","name":"Roger Pi","registered_at":"2026-06-21T09:21:28Z","symbol":"NIM1887086","token_address":"0x5254f50c30e8cb88d1958e10b6bfdd1569c3496d","type":"artist","uuid":"e731a01b-84dc-4ecb-afc2-2798a7ea39ff"}
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 0xdbae96616efcc18a62a8f42e7381b01cf557988b6c379d86ae5de289142345b4. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e731a01b-84dc-4ecb-afc2-2798a7ea39ff.json and https://artists.proofprofile.net/proofs/artist/e731a01b-84dc-4ecb-afc2-2798a7ea39ff.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xdbae96616efcc18a62a8f42e7381b01cf557988b6c379d86ae5de289142345b4","name":"Roger Pi","registered_at":"2026-06-21T09:21:28Z","symbol":"NIM1887086","token_address":"0x5254f50c30e8cb88d1958e10b6bfdd1569c3496d","type":"artist","uuid":"e731a01b-84dc-4ecb-afc2-2798a7ea39ff"}
album: Memo
  type: MusicAlbum
  date published: 2023-04-14
album: MEMO
  type: MusicAlbum
  date published: 2023-05-12