Vivianne Sydnes
type: MusicGroup
genre: choral
popularity: 5
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa35f48aec95c25da7947b0ee606005fe59270f2ae36568cf59663114d82eefa3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc36957b-0afd-44ef-841d-d03eeba72d5d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc36957b-0afd-44ef-841d-d03eeba72d5d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc36957b-0afd-44ef-841d-d03eeba72d5d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa35f48aec95c25da7947b0ee606005fe59270f2ae36568cf59663114d82eefa3","name":"Vivianne Sydnes","registered_at":"2026-06-20T23:14:46Z","symbol":"NIM1744973","token_address":"0x9b42a396978e862fb670d87ce9a4933856aa9b2a","type":"artist","uuid":"cc36957b-0afd-44ef-841d-d03eeba72d5d"}
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 0xa35f48aec95c25da7947b0ee606005fe59270f2ae36568cf59663114d82eefa3. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc36957b-0afd-44ef-841d-d03eeba72d5d.json and https://artists.proofprofile.net/proofs/artist/cc36957b-0afd-44ef-841d-d03eeba72d5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xa35f48aec95c25da7947b0ee606005fe59270f2ae36568cf59663114d82eefa3","name":"Vivianne Sydnes","registered_at":"2026-06-20T23:14:46Z","symbol":"NIM1744973","token_address":"0x9b42a396978e862fb670d87ce9a4933856aa9b2a","type":"artist","uuid":"cc36957b-0afd-44ef-841d-d03eeba72d5d"}
album: Klinge skal et jubelkor
  type: MusicAlbum
  date published: 2023-11-17