Orchestre National Symphonique de Roumanie
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 0x3290907d571d3258bb8d06e1874fcaba7e53df31f6da0efab7fc24cad4e10195. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b356b210-f88a-40ad-83a6-c7c86246a86e.json and https://artists.proofprofile.net/proofs/artist/b356b210-f88a-40ad-83a6-c7c86246a86e.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 0x55e38eb14a5b945d96c8efc494674b223d81472fcf97b550a61f9e08b56440a3. 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/NLF361701150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092fc6e07e37282918a37d7b196d7bf4bde0cb15894c23ae93a8492813e8c3e3. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/NLF361701190.
Chœurs d'enfants sous la coordination de la Maison de la musique Vladimir Cosma de La Motte-Servolex
Chœur Elégie de l'Ecole Nationale de Musique de Villeurbane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87a378f7605d5b6bb9cc68787cb26c7855e4651a1c0d7829ea1784d3166357b. 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/NLF361701200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe27df083b70415e904d2a99c8abd01c9cfe183a0c9a869968cfac8dca5cb231. 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/NLF361701220.
Le Château de ma mère: La Valse d'Augustine - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30f8bec868d5471213f1b04de642e52a3bd4ba55e8e8afa7cf2e287641fccfd. 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/NLF361701230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b6093c9d40858f0d84cc0f5ca0940a7047f70201c21000bb01232cb5cb35f4. 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/NLF361701250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f0348e8616046251c07d76681e90b4fb60ee52aa1d5cf424a24996143afc54. 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/NLF361701270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc280a4bac8b08c8a4d9a4e78504b072861da48db1be0407c5445eb2a299de69d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF361701140.
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 0x6f62b8830311dcaa9ff7b8c116c41337e0d3f544c431597cd776a3d9e4a3aaba. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLF361701160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc009183f8efc25b2f191e74b9d676e2c22172cbc018d63b14446314a4c7b12c0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLF361701170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aba875ff52ab01c3b4a08f427a7eb0242e5a7b3661b1c165c75cef45aa9df3f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLF361701180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc07fdf6ac2feb1b87cdb924789356fe4c48a6a992c5d07c7abd1f018b479334. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLF361701210.
Les Sous-Doués en vacances - Le Père Noël est une ordure: Destinée - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2664152dea32e3260b2befe9f44a66dc96e35c0de66a03d5cb3c186f2ac9ae. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLF361701240.
La Septième Cible: Concerto de Berlin - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fdf72900ff2a95fb6e275f8dbe70bd2c5a3055782000aab7501941a34fa8c1. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLF361701260.
Cantate 1209: La Croisade, extrait - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58ddb8b39c4be20df9b6d4cf7d4eda59ff03cb1ba8e04c0b7e4705fc973e781. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLF361701280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7fd038ea8e1da37aa6359e7bc7ac64f9d01df664ec1e615e0d58482b0634ec. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NLF361701290.
Le Bal des casse-pieds: Les Casse-Pieds - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7f5589df64c7ea6c10709d558bcbfd9a0f1445b6164a5504765b14a00f1031. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/NLF361701300.
Salut l'Artiste: Yves et Danielle - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14049aa7f0d806bccdeb4acafa5d8dbc6f69a656f1c8df380a1069b048eb8959. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLF361701310.
L'Aile ou la Cuisse: Concerto Gastronomique - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d38c0f20caea9658b2f6c7c047cf5d1f7a40268c5ec55372ab1ff32d55f51c0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NLF361701330.