Orchestre du Théâtre National de l'Opéra de Paris
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 0x05bb0873086bed186106231eec6e8d9f781fd2e61b40e535dbe2934ee325476d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc85ee17-1ca2-47f5-8581-1562aa90ba40.json and https://artists.proofprofile.net/proofs/artist/dc85ee17-1ca2-47f5-8581-1562aa90ba40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Verdi: La traviata & Rigoletto. Airs et duos chantés en français
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 0xa35898aaee0aad779f247aaf50ebf6b7d6a492c985144a017e3a40069b40de2e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRZ115307117.
Claude Debussy: La Mer, Nocturnes, Jeux, Marche écossaise, Salut Printemps, Évocation
Donizetti: La fille du régiment, Act 1: "La voilà" - Duo. "Au bruit de la guerre" (Sulpice, Marie, Chœur) [Live]
Chœur du Théâtre national de l'Opéra de Paris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35e74fd208e5530ca01a2d847de59b7d94c01671bd8c546a1b126b73be820c2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRZ118603608.
Donizetti: La fille du régiment: Ouverture (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5f477db426b6a3d76e2fa5b4420cf7bc54076d54a89564e7ff8380f0b13d4d. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FRZ118603604.
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
Donizetti: La fille du régiment, Act 1: Couplets. "Pour une femme de mon nom" (La Marquise, Chœur, Hortensius) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6919673e2cb43a229f77ea07ff2fab60cab1ae8a193c595e4904521c6df47dbf. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRZ118603607.
Donizetti: La fille du régiment, Act 1: Chœur. "Allons, allons, marche à l'instant" (Chœur, Marie, Tonio, Sulpice) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf21472b50dff2c431a390045e5964105a6c55f6b27810a56dee876ad3c356e0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRZ118603609.
Donizetti: La fille du régiment, Act 1: Couplets. "Chacun le sait, chacun le dit" - "C'est l'instant de l'appel" (Marie, Chœur, Tonio, Sulpice) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967fd23e08e688f3b617bad1509916e427b40f56fabf26d7a105c4872a4b0940. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRZ118603610.
Donizetti: La fille du régiment, Act 1: Duo. "Quoi, vous m'aimez ?" (Marie, Tonio) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f18915f0276aa68dc90d7c6854c7ef83fc666a9eca31e8af901a3559d30e71. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FRZ118603611.
Donizetti: La fille du régiment, Act 1: Cavatine. "Ah, mes amis, quel jour de fête" (Tonio, La Caporal, Chœur) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61736c1faaf2cb991e4e6342d16ca7bdc4d8f5292e134c893d489c56bd638063. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118603613.
Donizetti: La fille du régiment, Act 1: Finale. "Je suis soldat" - Romance. "Il faut partir" - Ensemble. "Partons, Marie !" (Tonio, Sulpice, Chœur, Marie, Hortensius, La Marquise, Le Caporal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d530945b6590fe1412dd78d2fe1d7718a94758d92ab7663278a293cb8e7841. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118603614.
Saint-Saëns: Samson et Dalila, Op. 47, Act 1: Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d9951d20779bdc668b4dd5e8687a4d8e73628f98ab46a3acde0249ca7d1d0f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ110100143.
Saint-Saëns: Samson et Dalila, Op. 47, Act 2, Scene 3: Air. "Mon cœur s'ouvre à ta voix" (Dalila, Samson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a3a837f791d5fa0813793ca4eb3da09947e2962ce4ca510b51f539732a3d72. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRZ110100171.
Verdi: Rigoletto, extraits chantés en français (Mono Version)
Bizet: Carmen, Act 1: Habanera. "L'amour est un oiseau rebelle" (Carmen, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24af0a525588d06f432207f2e350cdc00eeec689f7f5042c5a6606cbb591f949. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2301382.
Carmen, WD 31, Act II: La fleur que tu m'avais jetée (Flower Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22125f337feeb7ead321d6f1b957e7675749dc982af5e78383528cb4d8da21c2. 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/GBAYC9006366.