Constantine Callinicos
type: MusicGroup
popularity: 13
followers: 44
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97b6eb88dd80f1899660476f98b470db0e28b2e385cedb0ade8d829b8ec7e8ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79623fdc-8af8-45a1-b7fd-42b321b5d5a4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79623fdc-8af8-45a1-b7fd-42b321b5d5a4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/79623fdc-8af8-45a1-b7fd-42b321b5d5a4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97b6eb88dd80f1899660476f98b470db0e28b2e385cedb0ade8d829b8ec7e8ee","name":"Constantine Callinicos","registered_at":"2026-06-14T17:13:53Z","symbol":"NIM0521134","token_address":"0x67d0b5c223c6c9ae2549985d152e70af3ae8d0a9","type":"artist","uuid":"79623fdc-8af8-45a1-b7fd-42b321b5d5a4"}
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 0x97b6eb88dd80f1899660476f98b470db0e28b2e385cedb0ade8d829b8ec7e8ee. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79623fdc-8af8-45a1-b7fd-42b321b5d5a4.json and https://artists.proofprofile.net/proofs/artist/79623fdc-8af8-45a1-b7fd-42b321b5d5a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x97b6eb88dd80f1899660476f98b470db0e28b2e385cedb0ade8d829b8ec7e8ee","name":"Constantine Callinicos","registered_at":"2026-06-14T17:13:53Z","symbol":"NIM0521134","token_address":"0x67d0b5c223c6c9ae2549985d152e70af3ae8d0a9","type":"artist","uuid":"79623fdc-8af8-45a1-b7fd-42b321b5d5a4"}