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 0xe9de86850c3fab86eef274653f41d9868b3ca9dd13705723eec9191a1f113ca9. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f464b573-3fac-4a29-b987-76f27f1ccaef.json and https://artists.proofprofile.net/proofs/artist/f464b573-3fac-4a29-b987-76f27f1ccaef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tous en cœur (100 artistes s'enggagent en musique pour l'enfance en danger - Live)
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 0x9f36052cf209d1a8871be11f4d1324ceb6f06e89959f405566cafdc0630ef027. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR7Y71300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597ffc6ac0eb0c2600c1e2cbe86f8b7e7570c12534076540fd7c73bb71f3951b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR7Y71300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06aed9903e81e18190ec06a1c98cfc7c51b513951881d731c0458fc2e6360b9. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FR7Y71300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fc6d6be98515efa069ee9c9a89f876308f0d88c5d91964f48d8541417cb487. 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/FR7Y71300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ada381bf96c4190e2a35679adaaac1b90144f286ccabe6e22898a092c3b0be2. 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/FR7Y71300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97c94e8235789c742d14b22db2b712e44fc93ba841bbc837f6e3c9db4e38908. 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/FR7Y71300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79563bc524a709427d1b163d436bf42a5332369ce7fc816155f6360879a41192. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR7Y71300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9084df76de76888cf8ff4559d1a79776b3c66fc51ba348bfc07de374913bb9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR7Y71300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6461652c1df84c3bde59e4999eb78cdf196a71062aeba2a5e122a8745adcaddb. 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/FR7Y71300014.
2 Mélodies hébraïque, M.A 22: I. Kaddisch. Lent (Arr. for Cello and Piano by Ensemble Contraste)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd327b7b0843a1d764b1d1d05a5cd781a709ccb38714de82ea261f812409e61b9. 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/FR50X2076302.
Schwanengesang, D. 957: IV. Ständchen "Leise flehen meine Lieder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7013a28c1987d6918b69f5c06f5d22d6c13f2e7aaa07cee8184a8ef0e5e84023. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR50X1941801.
Winterreise, D. 911 Op. 89: I. Gute Nacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88137da4838cad258beec8d8877c8b4ab0c1bc5afa594a46355cfd415fd4ce07. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR50X1941802.
Winterreise, D. 911 Op. 89: IX. Irrlicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74677f18b5b34dcf84fc8a0cca08275529d5232f0c37067196a554fa7d86b29b. 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/FR50X1941803.
Improvisation on Arpeggione Sonata, D. 821
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccef5345e21c1461d516751a95bb3ed64a2a13ea7140bb4ad65a448eefbdd9e. 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/FR50X1941804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401d4b79744457606da5eaa4e433ca7e5f6433b305a4dff9c08c7b50c92d5dba. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FR50X1941805.
Die Schöne Müllerin, D. 795 Op. 25: XVIII. Trockne Blumen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceab0e738a4e5488574ba9cbf27d1fb1a50b9e2dae38d64e65c6d6e5b552bb7. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR50X1941806.
Impromptu in G-Flat Major, D. 899 Op. 90 No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4ffeebbe417bd0f95433225910318191b456177b68e9a16c9e3413c55e0185. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/FR50X1941807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870bb530d4e9472aeec7ba3227c36cdca9ecf10426ebb614f23aaa972dd85a50. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR50X1941808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f2a18aefed4ce264b18d1a74a31fbcd70e4355b0d1bd91b77711576a0a3ec5. 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/FR50X1941809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6cc9d2741167c858f7b0ae80da6166eea6fe728fbd9193338d7b68410e834a. 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/FR50X1941810.
Improvisation on Symphony No.8 in B Minor, D. 759 "Unfinished"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd74928585ed76a195cfc9fb4c4c39739e6fbebfa0b1b01dd6a9b44bb66ed35. 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/FR50X1941811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbba1a40c03f221edac18a62b254a5e639eb15fdbb4e5ea0f83e23d782d91cc. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR50X1941812.
Winterreise, D. 911 Op. 89: VI. Wasserflut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d53950f44b7699c02931e3e97448a3ef78c7aa0b989c9401ddbb5660903f28. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR50X1941813.
Moment Musical in F Minor, D. 780 Op. 94 No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf065590b56b3c54e91b7f24a086644aac7268371167cf6f7d9365c2ce76ef1e. 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/FR50X1941814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76df2ed7703590e2c73299fea8dbc6558bd7d030bcf2d37e4524332d7a134aac. 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/FR50X1941815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe2ed6e9ec9fd266a8d21e79d1d0ff68f74afe5bb7550e7bc199160fc84dcb8. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/FROV61715901.
Concerto pour Harpe et Orchestre à Cordes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2660607fb72a77227b0e183f19f255794b747b3b5dce0112b22bc9f8a3c20e1a. 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/FROV61310803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64750ca3ac6f371b94f958f4c2754e58e3d06842322171f551cba89def85773. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FROV61410601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1ef6d1c419cf21e5e12e338788abc26a1e9c81fc75bc68b69732d2bdba4c30. 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/FROV61410602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf9df0b0ed7658de748a0ad8630758019a6f805a16ef938b71657fd5e173953. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FROV61410603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab3e24d56af21b98b96f10f57973620ec05e4fff6e5e3f2bd577cbd096cefc0. 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/FROV61410604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fd2d06d70e489984426757013eb1adfe479f6e13e82b2514e92fa83b4d63dc. 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/FROV61410605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb1d3e0ee28c79beb7d613c04ee3b96386cd1b652576418ea86d8228856772b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FROV61410608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28f5f6dea8a9ca68cbd72fc0407abfdaa31619b63b0a22270d830c2508339a2. 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/FROV61410615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed0c08b68b4c23ef2209429a78404c958f4a55bc4ba3fa76299afe13216def3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRZ131231011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842bac44ddb0f2147d296ad101f632bcfc3432a56035b8930f760992013b9f75. 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/FRZ131231031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f96d5e1f1ab7e473320724d37a8f156e00f9064d9cd7fe8b24ed92fca21724c. 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/FRZ131231041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3f3629ef2f015fa8be68c1e05e1fd5fb15d714861ab794df4f12a48412c777. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FRZ131231051.
Ich ruf zu dir Herr Jesu Christ, BWV 639
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50264d66880b0d76b21687f86ff4a55fbde929cb59481bada2de79b4aff6100a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRZ131231061.
Requiem in D Minor, K. 626: No. 6, Lacrymosa - Arr. by Johan Farjot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3250c4085902f3042d79fb9355ca23e62f83b4d5002149c885cd9497fd5446ce. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/FRZ131231071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3eba4e144c8af1ac7c8f0dd4c0767288c8fbfe8d6e05e0d210b77e643155b3. 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/FRZ131231081.
Fauré: La Bonne Chanson, Op. 61 & Quatuor avec piano, Op. 15
Choral pour orgue « Ich ruf zu dir, Herr Jesu Christ » BWV 639
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d047fcc2504efc041d83a700f9d3fd0ca4e65a0ba3b14993d2cd2a1d2cebe1d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR3Z51100167.
L’Offrande musicale: Ricercare à 6 BWV 1079
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8a14ffd71a3ce03b0c169b5407b627dde15d41a513f7129fbad870e81c7180. 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/FR3Z51100171.
La Passion selon Saint mathieu: Aria « Erbarme dich » BWV 244
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcf2bd5148788700524d8ff586aded525b04e691609c1b9319fb2cdc18f1021. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR3Z51100173.
Passacaille et fugue en Ut Mineur pour orgue BWV 582
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35078c1ff3a92ddd1d6d71ff0d554c02dd0473c1656525e7199121c7b53fa42. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FR3Z51100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7837ecdca52488d86e95665c7988dd83fe165a21371b0ac3fed9a33a2b450f80. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR3Z51100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302058a02f87a469fb11126ca9f280de7abbc8800bfee7674009621dd203d40d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FR1P70801450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6a6f9529ec212beb6f4d7677e06000848bc4eb75a99895abed00f8d88260a1. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FR1P70801460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb285264d3031c313f2a06d3c321b5f1255589e939fb89eab30a4f17cadadb34d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/BER180760611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e88e7b07804aa90bf09c880efe0b2ad8789e3918f95c210bf545749b6c0415a. 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/FR1P70801560.
Tu vuò fà l'americano (Arr. for Voice & Chamber Ensemble by Johan Farjot)
Schindler's List Theme (Arr. for Viola and Cello by Johan Farjot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e072e1aee037d1e4e56c1930ea89b45fedc1fa6917d420aab9b7971ad23394. 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/FR50X2076303.
Schwanengesang, D. 957: IV. Ständchen 'Leise flehen meine Lieder'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7013a28c1987d6918b69f5c06f5d22d6c13f2e7aaa07cee8184a8ef0e5e84023. 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/FR50X1941801.
Onslow: Sextet No. 1 - Septet in B-Flat Major - Nonet in A major, Op. 77 - Wind Quintet in F major, Op. 81