Calma californiana
type: MusicGroup
popularity: 2
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab414465b0af09a1745184b48a3539f44e0b4481062fb77db5a7ed5b258f22ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a94cff45-6d76-4ae0-8839-56140d43dd49.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a94cff45-6d76-4ae0-8839-56140d43dd49.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a94cff45-6d76-4ae0-8839-56140d43dd49
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xab414465b0af09a1745184b48a3539f44e0b4481062fb77db5a7ed5b258f22ad","name":"Calma californiana","registered_at":"2026-06-20T09:06:44Z","symbol":"NIM1573950","token_address":"0x841f1e94e40758964460b04f25519b63caed6d45","type":"artist","uuid":"a94cff45-6d76-4ae0-8839-56140d43dd49"}
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 0xab414465b0af09a1745184b48a3539f44e0b4481062fb77db5a7ed5b258f22ad. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a94cff45-6d76-4ae0-8839-56140d43dd49.json and https://artists.proofprofile.net/proofs/artist/a94cff45-6d76-4ae0-8839-56140d43dd49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xab414465b0af09a1745184b48a3539f44e0b4481062fb77db5a7ed5b258f22ad","name":"Calma californiana","registered_at":"2026-06-20T09:06:44Z","symbol":"NIM1573950","token_address":"0x841f1e94e40758964460b04f25519b63caed6d45","type":"artist","uuid":"a94cff45-6d76-4ae0-8839-56140d43dd49"}
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