Mike Cosford
type: MusicGroup
popularity: 6
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc4a648a5b2db81112e4ae5f11b2f8c263d8eaa565b3546928a47b98fffc3c78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcd1300c-6841-4bdb-9489-22d4dbd09c21.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcd1300c-6841-4bdb-9489-22d4dbd09c21.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bcd1300c-6841-4bdb-9489-22d4dbd09c21
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc4a648a5b2db81112e4ae5f11b2f8c263d8eaa565b3546928a47b98fffc3c78","name":"Mike Cosford","registered_at":"2026-06-20T17:19:42Z","symbol":"NIM1667735","token_address":"0x7506b7c27e0466858abc5a66a8168ea9d464cac6","type":"artist","uuid":"bcd1300c-6841-4bdb-9489-22d4dbd09c21"}
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 0xfc4a648a5b2db81112e4ae5f11b2f8c263d8eaa565b3546928a47b98fffc3c78. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcd1300c-6841-4bdb-9489-22d4dbd09c21.json and https://artists.proofprofile.net/proofs/artist/bcd1300c-6841-4bdb-9489-22d4dbd09c21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xfc4a648a5b2db81112e4ae5f11b2f8c263d8eaa565b3546928a47b98fffc3c78","name":"Mike Cosford","registered_at":"2026-06-20T17:19:42Z","symbol":"NIM1667735","token_address":"0x7506b7c27e0466858abc5a66a8168ea9d464cac6","type":"artist","uuid":"bcd1300c-6841-4bdb-9489-22d4dbd09c21"}
album: Letting Go
  type: MusicAlbum
  date published: 2025-04-25