Dana Longfellow
type: MusicGroup
popularity: 25
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf822b8eb43baa4977e5bc9be385871faa7269ea6bd5a564715344700301d0907
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60a74f33-50b4-4647-a438-b5e8731d97e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60a74f33-50b4-4647-a438-b5e8731d97e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/60a74f33-50b4-4647-a438-b5e8731d97e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf822b8eb43baa4977e5bc9be385871faa7269ea6bd5a564715344700301d0907","name":"Dana Longfellow","registered_at":"2026-06-11T22:48:49Z","symbol":"NIM0126953","token_address":"0x79a0b7664d9b9774f329c71b042c154e5680221b","type":"artist","uuid":"60a74f33-50b4-4647-a438-b5e8731d97e6"}
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 0xf822b8eb43baa4977e5bc9be385871faa7269ea6bd5a564715344700301d0907. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60a74f33-50b4-4647-a438-b5e8731d97e6.json and https://artists.proofprofile.net/proofs/artist/60a74f33-50b4-4647-a438-b5e8731d97e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xf822b8eb43baa4977e5bc9be385871faa7269ea6bd5a564715344700301d0907","name":"Dana Longfellow","registered_at":"2026-06-11T22:48:49Z","symbol":"NIM0126953","token_address":"0x79a0b7664d9b9774f329c71b042c154e5680221b","type":"artist","uuid":"60a74f33-50b4-4647-a438-b5e8731d97e6"}
album: Bad Mannerisms
  type: MusicAlbum
  date published: 2025-01-09