Serge Tizac
type: MusicGroup
genre: opera
popularity: 2
followers: 8
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5df98ab182a71e70d3c484fec617a411e311eabc33118fd1d3c8c7d2a9a5a3. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0773e839-4dd8-448c-822a-54959dfda2f6.json and https://artists.proofprofile.net/proofs/artist/0773e839-4dd8-448c-822a-54959dfda2f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:46:03Z
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track: Tito Manlio, RV 738 / Act 2: "Combatta un gentil cor"
track: Con voce festiva. Aria con tromba sola

Tito Manlio, RV 738 / Act 2: "Combatta un gentil cor"
type: MusicRecording
duration: PT4M1S
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explicit: false
by artist: Antonio Vivaldi
by artist: Cecilia Bartoli
by artist: Serge Tizac
by artist: Ensemble Matheus
by artist: Jean-Christophe Spinosi
in album: Antonio Vivaldi
  type: MusicAlbum
  date published: 2018-11-23
isrc code: GBBBA1800577
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35651e665e52b219292c12ab1df5e4a84382f3253b59235bf05e84cd31108049. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA1800577.
  date published: 2026-07-02T11:38:34Z
audio: Tito Manlio, RV 738 / Act 2: "Combatta un gentil cor"
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  additional property: Speechiness
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  additional property: Loudness (dB)
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Con voce festiva. Aria con tromba sola
type: MusicRecording
duration: PT1M30S
duration ms: 90200
explicit: false
by artist: Alessandro Scarlatti
by artist: Isabelle Poulenard
by artist: Serge Tizac
by artist: Les Passions
by artist: Jean-Marc Andrieu
in album: Scarlatti: Con voce festiva (Cantate e concerti)
  type: MusicAlbum
  date published: 2006-04-21
genre: classical
genre: italian-opera
genre: early-music
genre: baroque
genre: italian-baroque
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:53:07Z
audio: Con voce festiva. Aria con tromba sola
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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