Sam Franz
type: MusicGroup
genre: smooth jazz
popularity: 3
followers: 109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc6eda5319bc35f6a73e3eef6c91973be12ed71580c97a394c69f5cae2aa958d
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/cfaf9b1c-7347-4b62-9fee-4f9c38599fc7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfaf9b1c-7347-4b62-9fee-4f9c38599fc7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cfaf9b1c-7347-4b62-9fee-4f9c38599fc7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc6eda5319bc35f6a73e3eef6c91973be12ed71580c97a394c69f5cae2aa958d","name":"Sam Franz","registered_at":"2026-06-21T00:55:25Z","symbol":"NIM1769035","token_address":"0xca2d71746fef2c80ceb857899c0b83d2a1da62ea","type":"artist","uuid":"cfaf9b1c-7347-4b62-9fee-4f9c38599fc7"}
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 0xfc6eda5319bc35f6a73e3eef6c91973be12ed71580c97a394c69f5cae2aa958d. 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/cfaf9b1c-7347-4b62-9fee-4f9c38599fc7.json and https://artists.proofprofile.net/proofs/artist/cfaf9b1c-7347-4b62-9fee-4f9c38599fc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xfc6eda5319bc35f6a73e3eef6c91973be12ed71580c97a394c69f5cae2aa958d","name":"Sam Franz","registered_at":"2026-06-21T00:55:25Z","symbol":"NIM1769035","token_address":"0xca2d71746fef2c80ceb857899c0b83d2a1da62ea","type":"artist","uuid":"cfaf9b1c-7347-4b62-9fee-4f9c38599fc7"}