Soňa Červená
type: MusicGroup
genre: opera
popularity: 6
followers: 193
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e8c1dbc-2af3-41ef-a39b-043f48f0134c.ots
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x194c9b2d613ed1ce328fe6b21e64d6435e11ac58a3b1388d7d98fd305b9f9983","name":"Soňa Červená","registered_at":"2026-06-17T09:41:51Z","symbol":"NIM1355854","token_address":"0x898ae1420196becf839eb0c3252a342d5f5ac8e1","type":"artist","uuid":"7e8c1dbc-2af3-41ef-a39b-043f48f0134c"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194c9b2d613ed1ce328fe6b21e64d6435e11ac58a3b1388d7d98fd305b9f9983. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e8c1dbc-2af3-41ef-a39b-043f48f0134c.json and https://artists.proofprofile.net/proofs/artist/7e8c1dbc-2af3-41ef-a39b-043f48f0134c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x194c9b2d613ed1ce328fe6b21e64d6435e11ac58a3b1388d7d98fd305b9f9983","name":"Soňa Červená","registered_at":"2026-06-17T09:41:51Z","symbol":"NIM1355854","token_address":"0x898ae1420196becf839eb0c3252a342d5f5ac8e1","type":"artist","uuid":"7e8c1dbc-2af3-41ef-a39b-043f48f0134c"}
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