1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1b41dab7060aab30e2a7d3bf6668a042e26d0d1ee64c01c7fa880f652ad8968d. 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/e7cd5c73-6046-414a-b629-fabd3e9e6609.json and https://artists.proofprofile.net/proofs/artist/e7cd5c73-6046-414a-b629-fabd3e9e6609.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ora Doci Ora Margos (Bonus Track Version)
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 → block OTSBitcoinBlock must exist at that height 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 0x19df857e9af6c69b26ff545e6e0ffe1a953078cddfc63d4f4a03a9d22ca205ad. 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/FRX621421010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cac55e52a9ffa8ce2e0d4440fe13ef538e762dcac3dfb8e6f63281d0477da2. 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/FRX621421020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5701ab42907f17d0e4f419cd135c857066411dba0a20de632511df8e5cf092db. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX621421060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fa73549fb4e627090f7ba35774b91308c853b12a9407eae26deba9bba96d86. 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/FRX621421080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9cce8f376f10964558ec9f9434e5a48e22ae22357a12a251b19b4cca62dfc5. 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/FRX621651010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f266c95b8a53a5cdd9ae9d782c33f81d80045e3def1f61f923117e88440b6f8. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/FRX621755010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa975b54ee0ae0bfda6d2db55126af0a8a00fb54199ece8553ce978796aa1fb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRX621755060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e0994830c3a3a34053af4286eed1f3968255a8a88313195e2ddab865528643. 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/FRX621752020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f9948eef24e38f021dafb0acc7a79ed61169bf8f41e2e6e3fb7702043b1edc. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX621755090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694106e05a494a41a1f5c703bca5a8089d2abe94c0006166f139b7bb83b1773f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:06:19Z), 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/FRX621755110.
Sou Free (feat. Flavia Coelho) [Mo Laudi Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9de250f0ce0de7275f4de02686ee156dae8cfb7a1da8d75e5ab31c7c77f38c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX621891010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5667f4c0473059ee48a233e4e89fc13fdad12b6e9253c0309f1c8ae04760043b. 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/FRX621999010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6031b1dc8d71d344f4fd10cf26b2cd63b6cd4ab5b709d71d437ade3e02b7e27. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:50Z), 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/FRX622007010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa480d4cc7e594f214e206bd73ec9dc489112b1ae157f8963ea2e1bf5cb0cddf5. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FRX622000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78b18e888b7e969248cda6bd677ed8db10d8561de1e59901bcf56e068f4a7d3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX622000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3711eeef3dc54e87dd0f2a63e4e5dc5f8a22d3a9e85c7bc27fc45e1543cbaf50. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX622000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2133b05fba4ef1ebd40a24cb2bdfae8c9c5ee49fb3ad7c72f860016dee188da. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:03:42Z), 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/FRX622000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802f99dbd57a2ee27f53a99837bba331ed0c53b67ed638c596132b6f4aa05fd6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX622258010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fe42eba5eb6ed7dc02ee32b6005d06759075b4cde1bd10fc4f745a5a4d832b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX622273020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcffbbec0e996a51509ad6a347c19b713ce70e3349cfb544f2561813cee8ef59. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX622273040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9187dc27e9d0fe5413d25f5e18888fe32c22cdd537645e5efe353b8a3901f5b0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX622273050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4b1d685b310d1b9f241e9b9c50c24155ca5efbdfdd9cde69d9f532849e0295. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX622273080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626f99ce8d4999ee23d56d05f273df08e7f93751703b00d67ec7e4b3d1622c71. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FRX622273090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44000cf96a5f0ddc015cbecbbbeb0278f06210274d1b26f1b15bee08015037b6. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FRX622373150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a46cf4c42fe1396d21f65d298e3eb716993745b6fae3944d68f9f95f301c15. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CVA002500568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0342f17bb2db6f4a654537328d4bf79c84f88e1fc4d530806d2eb1cd0d1963e1. 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/FRX622411010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fa73549fb4e627090f7ba35774b91308c853b12a9407eae26deba9bba96d86. 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/FRX621421080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ec694395cffc52f9d74bb6fd2a56c3ab92e871ea8312fa4112223f7176f486. 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/FRX621421050.