Mark Sherrill
type: MusicGroup
popularity: 11
followers: 129
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cc29cb82d95b2aa05ae9ed016c1013d8074d807b4d43d66bd3cdf5d4cd4a43e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953782
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953782
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d68fe2b7-e7c9-4a1b-8c55-47a00ccbd0ac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d68fe2b7-e7c9-4a1b-8c55-47a00ccbd0ac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d68fe2b7-e7c9-4a1b-8c55-47a00ccbd0ac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:13:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9cc29cb82d95b2aa05ae9ed016c1013d8074d807b4d43d66bd3cdf5d4cd4a43e","name":"Mark Sherrill","registered_at":"2026-06-15T02:59:26Z","symbol":"NIM0660857","token_address":"0x92e6d87fa18a3643c635f980279b609659d60382","type":"artist","uuid":"d68fe2b7-e7c9-4a1b-8c55-47a00ccbd0ac"}
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 0x9cc29cb82d95b2aa05ae9ed016c1013d8074d807b4d43d66bd3cdf5d4cd4a43e. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d68fe2b7-e7c9-4a1b-8c55-47a00ccbd0ac.json and https://artists.proofprofile.net/proofs/artist/d68fe2b7-e7c9-4a1b-8c55-47a00ccbd0ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:24:43Z
  text: {"copyright_id":"0x9cc29cb82d95b2aa05ae9ed016c1013d8074d807b4d43d66bd3cdf5d4cd4a43e","name":"Mark Sherrill","registered_at":"2026-06-15T02:59:26Z","symbol":"NIM0660857","token_address":"0x92e6d87fa18a3643c635f980279b609659d60382","type":"artist","uuid":"d68fe2b7-e7c9-4a1b-8c55-47a00ccbd0ac"}
album: Ol' Red
  type: MusicAlbum
  date published: 2012-01-01
album: Ol' Red
  type: MusicAlbum
  date published: 2012-03-27