Subtónica
type: MusicGroup
popularity: 4
followers: 312
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa355b6adf60f1f16e07fd7d7dca4140eb6b0ad61f53fd57dee64a982d4b6634e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21a69f3d-9392-4e08-a121-045eb88c94ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21a69f3d-9392-4e08-a121-045eb88c94ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/21a69f3d-9392-4e08-a121-045eb88c94ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa355b6adf60f1f16e07fd7d7dca4140eb6b0ad61f53fd57dee64a982d4b6634e","name":"Subtónica","registered_at":"2026-06-16T01:16:33Z","symbol":"NIM0891639","token_address":"0x6e90602a8054cd4b660ec7877fd8d8eb8351f8d4","type":"artist","uuid":"21a69f3d-9392-4e08-a121-045eb88c94ae"}
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 0xa355b6adf60f1f16e07fd7d7dca4140eb6b0ad61f53fd57dee64a982d4b6634e. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21a69f3d-9392-4e08-a121-045eb88c94ae.json and https://artists.proofprofile.net/proofs/artist/21a69f3d-9392-4e08-a121-045eb88c94ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0xa355b6adf60f1f16e07fd7d7dca4140eb6b0ad61f53fd57dee64a982d4b6634e","name":"Subtónica","registered_at":"2026-06-16T01:16:33Z","symbol":"NIM0891639","token_address":"0x6e90602a8054cd4b660ec7877fd8d8eb8351f8d4","type":"artist","uuid":"21a69f3d-9392-4e08-a121-045eb88c94ae"}
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