Nathalie Manfrino (born 1977) is a French soprano.L'heure de... Nathalie Manfrino, l'émission intégrale www.francetelevisions.fr 30 avr. 2010 – Nathalie Manfrino en intégralité "... Née d'un père ital
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200de0f052caea2977e60123bdaff303a1b38bf2cb92838f18f8220c16cd1dbb. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e404a7b4-0ecd-464d-a285-ae58e3f4f80f.json and https://artists.proofprofile.net/proofs/artist/e404a7b4-0ecd-464d-a285-ae58e3f4f80f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898d8f087c55e71e320e5a023c35ef58dd42b9e1aec94df36ffed5fb8b047679. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRUM71702250.
Verdi: La Traviata, Act 2: Ah! Dite alla giovine
Puccini: La Bohème, Act 1: Sì. Mi chiamano Mimì
Tous en cœur (100 artistes s'enggagent en musique pour l'enfance en danger - Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6461652c1df84c3bde59e4999eb78cdf196a71062aeba2a5e122a8745adcaddb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR7Y71300014.