thumb|right|The Hungarian-American conductor Eugene Ormandy () Eugene Ormandy (born Jenő Blau; November 18, 1899 – March 12, 1985) was a Hungarian-born American conductor and violinist, best known fo
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 0x0b7f357187392bc9cf11a63610390d66ea98febccf29cfea93283fb3b020ab12. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca2a11a7-7521-4d98-adec-e128d401a48f.json and https://artists.proofprofile.net/proofs/artist/ca2a11a7-7521-4d98-adec-e128d401a48f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brahms: A German Requiem (2023 Remastered Version)
A German Requiem, Op. 45: I. Blessed are they that mourn
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 0xb0bbe2feed123a1514b351fc472cb5f836bc039b6a37287f9ee6914b56e1ee9c. 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/USSM12300680.
A German Requiem, Op. 45: II. Behold, all flesh is as the grass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efb3c65bf70cfb26c3bd53632f6c70317f49bc9540d4cc690508c75339a7945. 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/USSM12300681.
A German Requiem, Op. 45: III. Lord, make me to know
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc42700593172eb6ace3fb32ad1d5a606a7d95e3085aac513d3f09798498068. 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/USSM12300682.
A German Requiem, Op. 45: IV. How lovely are thy dwellings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1539a300a575dfb0f721a63948cc5bbdfb86af4cecba9d9ea2a807c318c8e0f7. 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/USSM12300683.
A German Requiem, Op. 45: V. Ye now are sorrowful
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8d051df1dd670facb240b07d8b9d8109583d3faf5960b488be87e425c69822. 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/USSM12300684.
A German Requiem, Op. 45: VI. Here on earth have we no lasting place
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4476e21965a79d2ff47496b89e90086d3a88a21a3bf9577d9ae6f49067544790. 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/USSM12300685.
A German Requiem, Op. 45: VII. Blessed are the dead
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd67bfecfb1dddf8dadcaefe0473291abc6b0014eec553d41f79019786277fd. 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/USSM12300686.
Saint-Saens: Symphony No. 3 "Organ" & Le Carnaval des animaux (2023 Remastered Version)
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87457d743f4969c25018a4caa06273ec80462a7d1e83936fc36cb1c85e67cd9. 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/USSM11800115.
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcc46ef9f8420fd1e1fd09a44621335dfaf7b57b90f570924884aaaaefb912a. 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/USSM11800116.
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): I. Poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748172ec951667de8723952b9e58bcb5377d74d9e7eb1a88574dcce1bac825dc. 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/USSM11800117.
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5eaa2c39e2f3fbf4a61f37b7d47b013c5af421f35de8e09178ba5942795036. 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/USSM11800118.
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d3223670611ae28bdd8cd2511ac3ff857d3806fd3ab2908672e520b2299ad5. 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/USSM11800119.
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b9bf2c483ba4471787300cb1eb244a7d6cc51972b54478a78eacf5fd0ee699. 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/USSM11800120.
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e1178d0e3a34879f99e3023895495549a840fd6db393002708a0df61941aa8. 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/USSM11800121.
The Carnival of the Animals, R.125: 1. Introduction and Royal March of the Lion. Andante maestoso - Allegro non troppo - Più allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9072f5ca8666a83746dcfedcae838e3f8a9a36b7001faf4dc7c0f942ba34018a. 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/USSM10006638.
The Carnival of the Animals, R.125: 2. Hens and Cocks. Allegro moderato - Animato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d0fe3338cb1755a47cbcd3c48a0fc07365413ba4cf17b93a40d1d07633691b. 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/USSM10006639.
The Carnival of the Animals, R.125: 3. Wild Asses. Presto furioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703a95757ecc9a42d73134ecb9b55675c493af7a82a106174806a86139c6e66c. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USSM10006640.
The Carnival of the Animals, R.125: 4. Tortoises. Andante maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003d37183f245c1e3f09eecf6574ac5fc9d5e9fddbb3a4907fa471a81fa648f3. 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/USSM10006641.
The Carnival of the Animals, R.125: 5. The Elephant. Allegretto pomposo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d3d32cc4e51c1ab26c2c2106a8a3509036688889492b268e957b63204b4f87. 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/USSM10006642.
The Carnival of the Animals, R.125: 7. Aquarium. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28135adca4e7743fc2714da72c08ad94971271bc12f6aad0c3947d678ce23648. 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/USSM10006644.
The Carnival of the Animals, R.125: 8. Personages with long ears. Tempo ad libitum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fa60d3091247af7a65f0e84e7eaa3ef2003348ec72a7611eb2e0888dc030b5. 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/USSM10006645.
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral" (Remastered)
Ormandy Conducts Johann & Josef Strauss: Waltzes, Overtures & Polkas and More (2022 Remastered Version)
Schwanda the Bagpiper: Polka and Fugue - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0167069ff71114af0a6d676e59b1954b2286d0bd6ffd17f5fb6537a4785853. 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/USSM12107378.
Thomson: Louisiana Story & 5 Portraits (Remastered)
Thomson: 3 Pictures for Orchestra & 5 Songs from William Blake (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275207273664437828096a387800d3d1b3fd619edb0b6bb2f7e4aa724368d8c6. 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/GBAYC8500291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6968e6405c5a3c30c04c3e77972744aafd1500c57fd219f360c2c24e8d44e9a. 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/USBC10401972.
2 Pieces from Kuolema, Op. 44: No. 1, Valse triste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ade9a88fa906716aa6a8e78914b5c83648761ff1d7df570d9e5702c5c13b5a7. 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/USSM15901357.