Harper Toews
type: MusicGroup
popularity: 36
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cf10eae438294cf4cd6d4f5c67cbf696b57af4d0e906622b02ab089adb20c74
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/f1423680-7048-480b-9d3e-305d142bcbb0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f1423680-7048-480b-9d3e-305d142bcbb0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f1423680-7048-480b-9d3e-305d142bcbb0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2cf10eae438294cf4cd6d4f5c67cbf696b57af4d0e906622b02ab089adb20c74","name":"Harper Toews","registered_at":"2026-06-12T13:23:02Z","symbol":"NIM0310511","token_address":"0x6241e95034ecf83583f5c248bf86406951b0acc6","type":"artist","uuid":"f1423680-7048-480b-9d3e-305d142bcbb0"}
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 0x2cf10eae438294cf4cd6d4f5c67cbf696b57af4d0e906622b02ab089adb20c74. 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/f1423680-7048-480b-9d3e-305d142bcbb0.json and https://artists.proofprofile.net/proofs/artist/f1423680-7048-480b-9d3e-305d142bcbb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x2cf10eae438294cf4cd6d4f5c67cbf696b57af4d0e906622b02ab089adb20c74","name":"Harper Toews","registered_at":"2026-06-12T13:23:02Z","symbol":"NIM0310511","token_address":"0x6241e95034ecf83583f5c248bf86406951b0acc6","type":"artist","uuid":"f1423680-7048-480b-9d3e-305d142bcbb0"}
album: The Moon is Out
  type: MusicAlbum
  date published: 2025-08-29
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  type: MusicAlbum
  date published: 2025-09-05
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  type: MusicAlbum
  date published: 2025-09-12
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  type: MusicAlbum
  date published: 2025-10-03
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  type: MusicAlbum
  date published: 2025-10-17
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  type: MusicAlbum
  date published: 2025-10-31
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  type: MusicAlbum
  date published: 2025-11-14