Luther Callahan
type: MusicGroup
genre: lo-fi
popularity: 13
followers: 449
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd48afc56e8029b3a6e08630dac3d0c6cf3b5f7dd3e6dda59332a899b4ec879c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953697
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953697
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ebbe8b5-46f4-4a56-ad2e-7c87e92a2c14.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ebbe8b5-46f4-4a56-ad2e-7c87e92a2c14.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6ebbe8b5-46f4-4a56-ad2e-7c87e92a2c14
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:49:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd48afc56e8029b3a6e08630dac3d0c6cf3b5f7dd3e6dda59332a899b4ec879c2","name":"Luther Callahan","registered_at":"2026-06-14T16:05:51Z","symbol":"NIM0504902","token_address":"0x0d76702967224a9cac4207199226e7a8f2d270fd","type":"artist","uuid":"6ebbe8b5-46f4-4a56-ad2e-7c87e92a2c14"}
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 0xd48afc56e8029b3a6e08630dac3d0c6cf3b5f7dd3e6dda59332a899b4ec879c2. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ebbe8b5-46f4-4a56-ad2e-7c87e92a2c14.json and https://artists.proofprofile.net/proofs/artist/6ebbe8b5-46f4-4a56-ad2e-7c87e92a2c14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0xd48afc56e8029b3a6e08630dac3d0c6cf3b5f7dd3e6dda59332a899b4ec879c2","name":"Luther Callahan","registered_at":"2026-06-14T16:05:51Z","symbol":"NIM0504902","token_address":"0x0d76702967224a9cac4207199226e7a8f2d270fd","type":"artist","uuid":"6ebbe8b5-46f4-4a56-ad2e-7c87e92a2c14"}
album: After All
  type: MusicAlbum
  date published: 2023-03-12