Mark Sinner
type: MusicGroup
popularity: 2
followers: 5064
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7feae6c3d48ae4361a2f67a452ae43675fed26f0c4956f5cd2cfd45a9c8ba4e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953851
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953851
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01effd6d-e6d0-41d8-a6dc-a744d390a158.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01effd6d-e6d0-41d8-a6dc-a744d390a158.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/01effd6d-e6d0-41d8-a6dc-a744d390a158
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:06:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7feae6c3d48ae4361a2f67a452ae43675fed26f0c4956f5cd2cfd45a9c8ba4e6","name":"Mark Sinner","registered_at":"2026-06-15T14:16:58Z","symbol":"NIM0734255","token_address":"0x9e808fb6efdd50728b445e29f9557f40fa2469e9","type":"artist","uuid":"01effd6d-e6d0-41d8-a6dc-a744d390a158"}
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 0x7feae6c3d48ae4361a2f67a452ae43675fed26f0c4956f5cd2cfd45a9c8ba4e6. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01effd6d-e6d0-41d8-a6dc-a744d390a158.json and https://artists.proofprofile.net/proofs/artist/01effd6d-e6d0-41d8-a6dc-a744d390a158.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x7feae6c3d48ae4361a2f67a452ae43675fed26f0c4956f5cd2cfd45a9c8ba4e6","name":"Mark Sinner","registered_at":"2026-06-15T14:16:58Z","symbol":"NIM0734255","token_address":"0x9e808fb6efdd50728b445e29f9557f40fa2469e9","type":"artist","uuid":"01effd6d-e6d0-41d8-a6dc-a744d390a158"}
album: Oxygen
  type: MusicAlbum
  date published: 2019-06-20
album: Viking
  type: MusicAlbum
  date published: 2020-01-17