Leo Coltrane
type: MusicGroup
popularity: 3
followers: 207
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa75d7e1255073747e661164e5a4568813002ede9c8f9df4d468cd00f9ea38cdb
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/54a42272-4d2e-4ddc-8f48-da59fac4f264.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54a42272-4d2e-4ddc-8f48-da59fac4f264.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/54a42272-4d2e-4ddc-8f48-da59fac4f264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa75d7e1255073747e661164e5a4568813002ede9c8f9df4d468cd00f9ea38cdb","name":"Leo Coltrane","registered_at":"2026-06-16T19:01:32Z","symbol":"NIM1145846","token_address":"0xb502f218d3faef22579c655fd1b604f6b5fb541f","type":"artist","uuid":"54a42272-4d2e-4ddc-8f48-da59fac4f264"}
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 0xa75d7e1255073747e661164e5a4568813002ede9c8f9df4d468cd00f9ea38cdb. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54a42272-4d2e-4ddc-8f48-da59fac4f264.json and https://artists.proofprofile.net/proofs/artist/54a42272-4d2e-4ddc-8f48-da59fac4f264.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xa75d7e1255073747e661164e5a4568813002ede9c8f9df4d468cd00f9ea38cdb","name":"Leo Coltrane","registered_at":"2026-06-16T19:01:32Z","symbol":"NIM1145846","token_address":"0xb502f218d3faef22579c655fd1b604f6b5fb541f","type":"artist","uuid":"54a42272-4d2e-4ddc-8f48-da59fac4f264"}
album: That Third Thing
  type: MusicAlbum
  date published: 2018-07-17
album: Move
  type: MusicAlbum
  date published: 2019-04-29
album: Feelings
  type: MusicAlbum
  date published: 2024-12-21
album: Between Summers
  type: MusicAlbum
  date published: 2025-08-14