César Frank
type: MusicGroup
popularity: 6
followers: 131
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55dc79da999f6b1b55d30187ad82dfd12150237b7f6afc1671a62c4617869777
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954013
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3552355c-67bf-4dbf-815a-14619a9c36e2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3552355c-67bf-4dbf-815a-14619a9c36e2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3552355c-67bf-4dbf-815a-14619a9c36e2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:27:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55dc79da999f6b1b55d30187ad82dfd12150237b7f6afc1671a62c4617869777","name":"César Frank","registered_at":"2026-06-16T08:06:22Z","symbol":"NIM0989542","token_address":"0xca50d9f2884bd9f1cdf09669e0ffca6539515320","type":"artist","uuid":"3552355c-67bf-4dbf-815a-14619a9c36e2"}
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 0x55dc79da999f6b1b55d30187ad82dfd12150237b7f6afc1671a62c4617869777. Chain 2 (Bitcoin): anchored in block 954015 (2026-06-16T22:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3552355c-67bf-4dbf-815a-14619a9c36e2.json and https://artists.proofprofile.net/proofs/artist/3552355c-67bf-4dbf-815a-14619a9c36e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:55:46Z
  text: {"copyright_id":"0x55dc79da999f6b1b55d30187ad82dfd12150237b7f6afc1671a62c4617869777","name":"César Frank","registered_at":"2026-06-16T08:06:22Z","symbol":"NIM0989542","token_address":"0xca50d9f2884bd9f1cdf09669e0ffca6539515320","type":"artist","uuid":"3552355c-67bf-4dbf-815a-14619a9c36e2"}