Spence Roper
type: MusicGroup
popularity: 5
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefcab2aba6bccb9997bd7212b496179087f8097af3d008657015b0de4e16b155
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52f46223-10ee-48f5-a030-2f0100b8a480.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52f46223-10ee-48f5-a030-2f0100b8a480.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/52f46223-10ee-48f5-a030-2f0100b8a480
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xefcab2aba6bccb9997bd7212b496179087f8097af3d008657015b0de4e16b155","name":"Spence Roper","registered_at":"2026-06-16T18:36:05Z","symbol":"NIM1139776","token_address":"0x9936d61ce177c65c18d1180bcf3811336fc5b0c9","type":"artist","uuid":"52f46223-10ee-48f5-a030-2f0100b8a480"}
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 0xefcab2aba6bccb9997bd7212b496179087f8097af3d008657015b0de4e16b155. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52f46223-10ee-48f5-a030-2f0100b8a480.json and https://artists.proofprofile.net/proofs/artist/52f46223-10ee-48f5-a030-2f0100b8a480.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xefcab2aba6bccb9997bd7212b496179087f8097af3d008657015b0de4e16b155","name":"Spence Roper","registered_at":"2026-06-16T18:36:05Z","symbol":"NIM1139776","token_address":"0x9936d61ce177c65c18d1180bcf3811336fc5b0c9","type":"artist","uuid":"52f46223-10ee-48f5-a030-2f0100b8a480"}
album: Dry Bar Comedy Presents Spence Roper: Just Spence
  type: MusicAlbum
  date published: 2024-02-28
album: Dry Bar Comedy Presents: Spence Roper: Just Spence
  type: MusicAlbum
  date published: 2024-02-28