The Half Note
type: MusicGroup
genre: tamil indie
popularity: 29
followers: 2424
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9be3fffbf8daa5db662e98130edfcc1de1f7e72d48cbd7a34adebe8952dcbe8
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/0bbabb3f-fc43-45fc-8562-21f10c361e9d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0bbabb3f-fc43-45fc-8562-21f10c361e9d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0bbabb3f-fc43-45fc-8562-21f10c361e9d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9be3fffbf8daa5db662e98130edfcc1de1f7e72d48cbd7a34adebe8952dcbe8","name":"The Half Note","registered_at":"2026-06-11T11:36:44Z","symbol":"NIM0015909","token_address":"0xf2a190791eb89f4fe4e4c98e06cc5c941d0b9d1e","type":"artist","uuid":"0bbabb3f-fc43-45fc-8562-21f10c361e9d"}
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 0xb9be3fffbf8daa5db662e98130edfcc1de1f7e72d48cbd7a34adebe8952dcbe8. 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/0bbabb3f-fc43-45fc-8562-21f10c361e9d.json and https://artists.proofprofile.net/proofs/artist/0bbabb3f-fc43-45fc-8562-21f10c361e9d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb9be3fffbf8daa5db662e98130edfcc1de1f7e72d48cbd7a34adebe8952dcbe8","name":"The Half Note","registered_at":"2026-06-11T11:36:44Z","symbol":"NIM0015909","token_address":"0xf2a190791eb89f4fe4e4c98e06cc5c941d0b9d1e","type":"artist","uuid":"0bbabb3f-fc43-45fc-8562-21f10c361e9d"}
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