Ian Simpson
type: MusicGroup
genre: bluegrass
popularity: 9
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf890134d531f97342a60f7a45884c71c905e1b5eaf4a03b9cfd9bb98e05d7a24
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41d6b6c2-6e79-4529-ae77-f3d9c612a97a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41d6b6c2-6e79-4529-ae77-f3d9c612a97a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41d6b6c2-6e79-4529-ae77-f3d9c612a97a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf890134d531f97342a60f7a45884c71c905e1b5eaf4a03b9cfd9bb98e05d7a24","name":"Ian Simpson","registered_at":"2026-06-16T12:32:29Z","symbol":"NIM1053026","token_address":"0xa337ce62e592203293ba751f979d24a60cd607bc","type":"artist","uuid":"41d6b6c2-6e79-4529-ae77-f3d9c612a97a"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf890134d531f97342a60f7a45884c71c905e1b5eaf4a03b9cfd9bb98e05d7a24. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41d6b6c2-6e79-4529-ae77-f3d9c612a97a.json and https://artists.proofprofile.net/proofs/artist/41d6b6c2-6e79-4529-ae77-f3d9c612a97a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T04:56:08Z
  text: {"copyright_id":"0xf890134d531f97342a60f7a45884c71c905e1b5eaf4a03b9cfd9bb98e05d7a24","name":"Ian Simpson","registered_at":"2026-06-16T12:32:29Z","symbol":"NIM1053026","token_address":"0xa337ce62e592203293ba751f979d24a60cd607bc","type":"artist","uuid":"41d6b6c2-6e79-4529-ae77-f3d9c612a97a"}
album: The Banjo - Misunderstood Maligned Magic!
  type: MusicAlbum
  date published: 2010-08-13
album: The Banjo - Misunderstood Maligned Magic!
  type: MusicAlbum
  date published: 2010-08-13
album: The Fiddle
  type: MusicAlbum
  date published: 2011-09-02
album: No Fun Allowed
  type: MusicAlbum
  date published: 2012-03-09
album: Banjo Australis
  type: MusicAlbum
  date published: 2013-08-09
album: Alehandra
  type: MusicAlbum
  date published: 2020-04-16
album: Daybreak
  type: MusicAlbum
  date published: 2020-04-26
album: Blonde on Blonde
  type: MusicAlbum
  date published: 2020-04-27
album: Rainbow
  type: MusicAlbum
  date published: 2020-04-27
album: Time Chime
  type: MusicAlbum
  date published: 2020-04-27