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 0x413146e788621cbad14eaab2f58ebf68112ab3ea4aae7b94e860cb0deabefe5e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cff8fd09-f14d-4e92-9e6e-c49544082660.json and https://artists.proofprofile.net/proofs/artist/cff8fd09-f14d-4e92-9e6e-c49544082660.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I giorni - Arr. by Stéphane Gassot & Christian-Pierre La Marca
I giorni (Arr. by Stéphane Gassot & Christian-Pierre La Marca)
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 0x2d0a50b356bea2ad6112ccefc6e6c228f2ea5f089052141d678f5368f1e26ce1. 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/FRZ132111190.
Over the Rainbow - Arr. by Stéphane Gassot & Christian-Pierre La Marca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55d1006fcf12c7409cdb5743f5c58e2598f7a27d2fb4617c63860a3768cf291. 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/FRZ132111020.
Moon River - Arr. by Stéphane Gassot & Christian-Pierre La Marca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1fcd4f07743a093b20229257cfea686066089c7d549c9bc30ea182de1937fd. 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/FRZ132111180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0a50b356bea2ad6112ccefc6e6c228f2ea5f089052141d678f5368f1e26ce1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRZ132111190.
Symphony No. 9 in D Minor, Op. 125 "Choral": 4b. Allegro assai - Live - Remastered 2019
Members Of The London Symphony Orchestra
Ode an die Freiheit – 30 Jahre Mauerfall – Bernstein in Berlin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf35cd7b23cb04a145408b723a7face9d29575f136da4e2803e2e2cb04c58d63. 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/DEN961902296.
Symphony No. 9 in D Minor, Op. 125 "Choral": 4d. Alla marcia - Live - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ff3c6c636f027d3a43f23b2d7980e7204f9143bf25fa1e6e7c628a58dc3ac2. 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/DEN961902297.
Symphony No. 9 in D Minor, Op. 125 "Choral": 4e. Allegro assai: "Freude, schöner Götterfunken" - Live - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ee435af5d6ae5b1f48b7a1bd89e208d0fbc2509a6540a43861b901d677ebf4. 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/DEN961902298.
Après un rêve - Arr. by Stéphane Gassot & Christian-Pierre La Marca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef7342dc73dd291b8c99b5e04ffd9ea518180eb5f6817af3cd3d1396800fe7e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRZ132111010.
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
Wintermusik - Arr. by Stéphane Gassot & Christian-Pierre La Marca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82297ab458d9c20ccb016cc04c48ab5acebc3be24f4311574cebce323e517b6a. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FRZ132111220.
What a Wonderful World - Arr. by Stéphane Gassot & Christian-Pierre La Marca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46089e449eb3a9d03abc469c895f4c99d94f170e02cf97e8e3264ffd5f7b8aa3. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/FRZ132111290.
Symphony No. 9 in D Minor, Op. 125 "Choral": 1. Allegro ma non troppo, un poco maestoso - Live - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aa5684a4bcaa3192aea2337c77c4c146ccc15c86be7896c354d28c2d966970. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEN961902291.
Symphony No. 9 in D Minor, Op. 125 "Choral": 2. Molto vivace - Live - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aed2ae37ea80a3a55e816df0bd6d2e8e630f36d0e5e6ab6c2a5ea447c31b57. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DEN961902292.
Symphony No. 9 in D Minor, Op. 125 "Choral": 3. Adagio molto e cantabile - Live - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b75f4c0dc06c8fe0986f1af435972553f838f48e4b62e6390d827b8d537bd02. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEN961902293.
Symphony No. 9 in D Minor, Op. 125 "Choral": 4a. Presto (I) - Live - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddce9dd24a411637a41b0c020501334c500ccd2c224faf8d364da31085a7acc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEN961902295.
Symphony No. 9 in D Minor, Op. 125 "Choral": 4c. Presto (II) - Live - Remastered 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4293ea5dc66752a477995d1bab75a387054eefb5c4b4c82f38879405a4f00e8b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEN961902331.