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 0x44af425c4e90a706a6df333dd7eb6e829da0929114c53956b70ff48d928ab45b. 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/b2ee609c-6aa2-4be0-a7d1-84355e32cb77.json and https://artists.proofprofile.net/proofs/artist/b2ee609c-6aa2-4be0-a7d1-84355e32cb77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concerto No. 1, "Infinite Games": I. Halleluja - After Alleluia, Cantata "Es Ist Uns Ein Kind Geboren", BWV 142
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 0xc33a8316c998ea4b3f73f6f4fdff4bd65b4e87c3064f0174419e1f367427be21. 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/DES381633001.
Concerto No. 1, "Infinite Games": II. Canon in C - After Canon Trias Harmonica a 8, BWV 1072
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4b31ac65c6f76484ff4bf833d7935b97143c332d7b73a54dc2a393a5e0b47c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DES381633002.
Concerto No. 1, "Infinite Games": III. Empty Set - After Aria, Cantata "Widerstehe doch der Sünde", BWV 54
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e71b7278fd1c69e99a56a878b103e16dd1dbc3352d6103f0c3183ea3a00c4f. 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/DES381633003.
Concerto No. 1, "Infinite Games": IV. Prelude in C - After Prelude in C Major, Nine Little Preludes, Klavierbüchlein für Wilhelm Friedemann Bach, BWV 924
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ab0ef0b0d34ec1734be2cd0fd1a96f46b170713a6bee55aed51d07866795cf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DES381633004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcef251566a65cb2207941ce98e982a3dd3aa04e644a4667b5f4dddfe9888543. 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/DES381633009.
Concerto No. 3, "Fuge Like a Passion": I. Canon in G - After Canon Super Fa Mi, a 7. Post Tempus Musicum, BWV 1078
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ea93519b221cb34ea641fca2921851ba8d01663f2414ce9ea78acd919e3ca1. 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/DES381633010.
Der 7. Tag (Original Motion Picture Soundtrack)
Lara (Original Motion Picture Soundtrack)
Concerto in D Minor, BWV 974: 2. Adagio (after Marcello S.Z799) - From "Lara" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d624011332f5055c132f560a64cec6de57f5650f7f6e15f248a799327a15ce. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN961902471.
Flowers Dantini - From "Lara" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a87bab7dc3d86229adbe51f928f4824f183fd72b8f3d70a326612554a9a7e6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN961902481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d4fca77d386c777b1e4970226170189026551c83f25622a23f20ab5d213575. 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/DEN961902491.
Waltzes, Op. 34: No. 2 in A Minor. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1a1c24424e51242288dd7ad61aa538732b2db4c76c4a9ad9477e3787e03534. 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/DEN960901370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c99b4f976968d3ebf13237a16a646a9317142e93a7b75a48eda71c86173439. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DELV42000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d20d976331eebe802fe95a13d9ecafcc26fa70ea4568c5cf29d88f9a84659c. 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/DELV42000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe062cfe8cb0e48acd0aa5972ea3e1d8527a32559396e74d8041ad6a3ea2350cd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DELV42000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e37f759102b99854ed4702d773ce692ee78dc802869ba5e78af441962a3947. 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/DELV42000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad373040fb971da0a8b382b601b52447d5e1b0c9e4ff71ce12d5ef4412216b4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DELV42000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4b62e13f5fd3688c2593c4b4bf5e828bd2cc80e2ac187c80ae78ec7c0232ab. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DELV42000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc3c4cf3ec2eda36d52bc83fb556f1c09db3b7609d00d176629bdd5d0bb53e4. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DELV42000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39429af8bdf39a5901326ee435e92f01bc44a28c16686e7337f32398e7377269. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DELV42000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91fd1b93740cb61e1a89ea655f51cc3eea84ffcd2323adc4c1fec97735cc4d6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DELV42000213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ec956d0d55419e1fb395d23629801ad911b078f75ec6e44ecd7e5e7941828b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DELV42000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152778711d56ae01a96b99a9f8b89f911c8d576a1e908d0856e9f82ae6be528c. 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/DELV42000215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ffc89e01142e823648952e918adab5375fe3701ee7207178117c44ba80535c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DELV42000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdf8b28107c983b5e3b1a12e624595a68858b17b067994098180d52f512f125. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DELV42000217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b84aca995c98bc38a12c206ca8712c2184dc051cdef70f1f728b371916f59f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DELV42000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb212d262376637544a58d7b4fc49e18c7f909d40e5c9295ac2193572ed88d584. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DELV42000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda3c1ee324efa5b93dd3ded6f585657601b81b9535c126cbe19a5cb61b9a170. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DELV42000221.
Adagietto (Matthew Herbert Mediterranean Dub)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c2a2dbb72127b3121e48bb4c1c307e2ee2d3c1230e84239aa3e06282523c7a. 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/DELV42000683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb212d262376637544a58d7b4fc49e18c7f909d40e5c9295ac2193572ed88d584. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DELV42000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a43621e86abbaaba5453a18193ca900f0576575359ba2ea5297e7bc942db962. 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/DELV42000222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2671b90f2d408796122c90dfb716898a31a8027ae450db1b081d280226b19e93. 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/DELV42100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc3c4cf3ec2eda36d52bc83fb556f1c09db3b7609d00d176629bdd5d0bb53e4. 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/DELV42000211.
The Shore (Music from the Film "The Fox")
Marie's Piece (Music from the Film "The Fox")
Resting (From the Original Motion Picture Soundtrack of "The Fox")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0d60fcffc8ce013640b09b66105aad43f768246818467461472edefccd4697. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DELV42201333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d70afcf21bffde2d516b7369fcdcc8006de39e8b5b7eefb57b03e622106fd7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DELV42201336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2837ad9c597c6e8f6435fa99a18a4418eb010daf16ccca8a03a7b6220ebc4b93. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DELV42201345.