Kathryn Roberts & Sean Lakeman
type: MusicGroup
genre: folk
popularity: 9
followers: 1451
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x346d126f446acc4da035785bc5442534739b07409365ac6cfe480c6e55eaff8a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b818f4ea-bd17-4ae1-a387-5440651a5e4c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b818f4ea-bd17-4ae1-a387-5440651a5e4c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b818f4ea-bd17-4ae1-a387-5440651a5e4c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x346d126f446acc4da035785bc5442534739b07409365ac6cfe480c6e55eaff8a","name":"Kathryn Roberts & Sean Lakeman","registered_at":"2026-06-21T19:07:46Z","symbol":"NIM1649489","token_address":"0x3fce90f6fcbeb964bad14e765e2850e3c75af572","type":"artist","uuid":"b818f4ea-bd17-4ae1-a387-5440651a5e4c"}
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 0x346d126f446acc4da035785bc5442534739b07409365ac6cfe480c6e55eaff8a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b818f4ea-bd17-4ae1-a387-5440651a5e4c.json and https://artists.proofprofile.net/proofs/artist/b818f4ea-bd17-4ae1-a387-5440651a5e4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x346d126f446acc4da035785bc5442534739b07409365ac6cfe480c6e55eaff8a","name":"Kathryn Roberts & Sean Lakeman","registered_at":"2026-06-21T19:07:46Z","symbol":"NIM1649489","token_address":"0x3fce90f6fcbeb964bad14e765e2850e3c75af572","type":"artist","uuid":"b818f4ea-bd17-4ae1-a387-5440651a5e4c"}
album: 2
  type: MusicAlbum
  date published: 2003
album: Hidden People - (new)
  type: MusicAlbum
  date published: 2012
album: Hidden People
  type: MusicAlbum
  date published: 2012
album: Hang the Rowan (Spike Drake Mix)
  type: MusicAlbum
  date published: 2012
album: Hidden People
  type: MusicAlbum
  date published: 2012-07-09
album: Tomorrow Will Follow Today
  type: MusicAlbum
  date published: 2015-02-23
album: Personae
  type: MusicAlbum
  date published: 2018-03-09
album: Almost A Sunset
  type: MusicAlbum
  date published: 2023-03-17