Sara Blanch
type: MusicGroup
genre: opera
popularity: 2
followers: 150
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5af84a9f31958340b1bb3f5b335ff41a8eb85814eb50b5ba4423551d97a48939
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7519c7d2-dda6-41ba-9896-189614645db5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7519c7d2-dda6-41ba-9896-189614645db5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7519c7d2-dda6-41ba-9896-189614645db5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5af84a9f31958340b1bb3f5b335ff41a8eb85814eb50b5ba4423551d97a48939","name":"Sara Blanch","registered_at":"2026-06-17T06:24:00Z","symbol":"NIM1308700","token_address":"0x1549edf4e67f716f078c16dfe0a4737023d40572","type":"artist","uuid":"7519c7d2-dda6-41ba-9896-189614645db5"}
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 0x5af84a9f31958340b1bb3f5b335ff41a8eb85814eb50b5ba4423551d97a48939. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7519c7d2-dda6-41ba-9896-189614645db5.json and https://artists.proofprofile.net/proofs/artist/7519c7d2-dda6-41ba-9896-189614645db5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x5af84a9f31958340b1bb3f5b335ff41a8eb85814eb50b5ba4423551d97a48939","name":"Sara Blanch","registered_at":"2026-06-17T06:24:00Z","symbol":"NIM1308700","token_address":"0x1549edf4e67f716f078c16dfe0a4737023d40572","type":"artist","uuid":"7519c7d2-dda6-41ba-9896-189614645db5"}
album: Rossini: Matilde di Shabran (1821 Version) [Live]
  type: MusicAlbum
  date published: 2020-12-04
album: Lindpaintner: Die sicilianische Vesper, Op. 332 (Sung in Italian as Il vespro siciliano) [Live]
  type: MusicAlbum
  date published: 2018-07-13
album: Donizetti: La fille du régiment, A. 56 (Live)
  type: MusicAlbum
  date published: 2022-06-17
album: F. & C. Doppler: The Complete Flute Music, Vols. 11 & 12
  type: MusicAlbum
  date published: 2020-11-06