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 0xd8baa7fcc9d01b8332a4fe5439738365ed801695808b8106f4d2d295a1df90ce. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8199f67b-d6cd-475f-9426-83528bea4711.json and https://artists.proofprofile.net/proofs/artist/8199f67b-d6cd-475f-9426-83528bea4711.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 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 0x8ea1fd3f8f45fd6a13686889043413a0f2f64e395b8d5e46a821fa419cbbb0e3. 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/PLU211800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65408e82679ebaac5b5349835c088ebab13abdf5f4e2b5207820cce58ed3960b. 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/PLU211800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc658734ecdb5c1778cfabf5073e1f296d1691452b18cdd1fd67de77bc0d6d2. 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/PLU211800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a0679ad930b3e1bc6f9e2d98b43e0a8ecec8aa84052845659a8e3ae1c43240. 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/PLU211800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd193b7ebc436b7a2845ef73639c979450e0bdad8af4656be9269b7be1fdac8f. 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/PLU211900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa8f10c517ac976983eaa1c655e19ad16ab5b76891f9d2c7c3b14a9906b4ba6. 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/PLU211900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0081618af99eebf123a9c1bf5a1b60529a345e87cc52aade88216db49c1ccc7. 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/US83Z2526745.
Nishati - DALAH & Ilias Katelanos Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965f6c76688a53498261df057488f94974943d54e2d5ae5669b512bc59a60517. 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/US83Z2526746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba5ff97de40ec485d60acecfb4539418a195630c04f67d3072a46c16e84c75b. 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/US83Z2237895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff22dd7d92f3d8b631462924f032bb3528d15bc4a810bf1958fc0e0154b1c14. 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/US83Z2237897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cc94f13fa5f86a50657faca3b50cf5bb20bb3684b961672497b5ab6d4bfcd0. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US83Z2237899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3701ee81f2f879db83c427d90a4fac45d35da438905a71cca03f1727d4d942. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/US83Z2405274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3f8954c16054f7773ae231107b44d418548f68183026f8318535760079858c. 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/US83Z2405276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0c4259a2e0a7f72b58e504cadc8a3cd149078fd148fe2529784057fd8d77a6. 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/US83Z2405275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa9221a392880d2c7fafd37fa26e4006c3eb5d6e16a81d3e21797a178a20ef9. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/US83Z2405277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf517188ea567828bc511f38c7bd1e6cb24ae2e5f4d0fb961dfe69d06ce961750. 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/US83Z2496060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09314f07d1a734e28d8e9569ee2f3fc7de494876be5452ef9866161df8979f83. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/US83Z2491746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63dcd8b2f9112931a7c62adff95c720726344289447e3c596646137bcc7b666. 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/US83Z2491745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ed3d6794b6ad32cf567dd37bf2b94445e79e51e32c7b3b584557b74fb8877c. 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/US83Z2485097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09605d6f8953334f7fa92da017de50b7b6dfe50356babd00caab549f1e918cf1. 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/US83Z2483194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64605b369c253730c467241e97ef8207894a68dc2e1de8a50cd95b600fef6c31. 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/US83Z2473377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc357f60423a7b756f2c69fcef58a70242b4deb9f57530796ad5a5d0b30ca34. 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/US83Z2473378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea65403bcc6203fbeb09ad9ae87e8ef596db8873f88bd5afd20f633b9208095. 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/GBKQU2408118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4844e702f8729e4727633f725ee4ff4c5e0b11f0fcb9e598bf965d3cc0469251. 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/GBKQU2408119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c6eebba16ad9d00f7367ff6c97077b78a688d12a5cb4ccec8666fe2671489f. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US83Z2350055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95e1d711b4a3f8a03c194ac786dae7b9b7aa227798b3173e04f628696c9cc32. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US83Z2343122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b62d15a948bb50d9bc906e9055e71c27cb933f365f845e55db10a19f52579f. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/US83Z2329135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ebc96a170232cde66dd7f934d78367dc9eb5305c829e07b75f063d5e2d76ac. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/US83Z2314971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fa2c3a764225727cdfc23b88f21ea800d90dc4015ba4dcaa8e7860d75e888b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/US83Z2240153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea66cfaff20547edafede521a93a057804b4c9962bde62ecc8fa5ed2d9d51cc. 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/US83Z2237775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203eab4acdb368aa1b805aac350dc96f143c5de586d5f8e60dad770cde1c0227. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2007471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b917790992b8d7682ddb8d567c613f643ef00e6b1e0e0bc4efb8fb46512109a. 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/US83Z2042991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef32026469f2a4d8e81e4cfa199a50fb70ba5075727db8f9b749d1a90e2c24b. 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/US83Z2042992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0288cbaed40dd5dbd8c6ab3b4549460988a716808df009847cce72b19752712f. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US83Z2042996.
Balagan - Soul Of Zoo, RobinG, Ben Eager Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91e222082930f933727e4f89305027dc85dbe3a090e303dde39b0bdc6919d2d. 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/US83Z2042993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ce433415abbe5c43de2519470c8e7fe537d7488a4e51c1cdc96f80e2712d96. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/US83Z2042995.