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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6ede3bb05fbd87b7ce652b71d22a9ade4122ea37b2a24161d9e4998a4b8d12. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42faf53c-aec3-49ea-91a9-54fc034e15a2.json and https://artists.proofprofile.net/proofs/artist/42faf53c-aec3-49ea-91a9-54fc034e15a2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad67504b20570b9dfff4805d272a160a0542c9cb96d9947f79d4523d6d35102a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL0968123 — a six-check JSON result.
The Art Of Beniamino Gigli, Vol. 2 1947-1955
Bizet: Les Pêcheurs de perles, WD 13, Act 1: No. 4, Romance, "Je crois entendre encore, caché sous les palmiers" (Nadir, Sung in Italian)
Beniamino Gigli/Orchestra/Sir Eugene Goossens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d58da67005edb3390a21f0328519a97187d6bbf659af1f3fb64352c1dbc1298. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8805275 — a six-check JSON result.
The Beniamino Gigli Collection, Vol. 6: The Last Carnegie Hall Concert & Last Studio Recordings (2014 Digital Remaster) [Live]
Gigli, Beniamino: Gigli Edition, Vol. 15: Carnegie Hall Farewell Recitals (1955)
Il mito dell'opera: Beniamino Gigli (Live)