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 0x25266788bc2ce971307927be5adc76cb11de59fdad64a052303a19966265f7ff. 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/5855e57f-6cd8-4557-a5b0-963a4128dce0.json and https://artists.proofprofile.net/proofs/artist/5855e57f-6cd8-4557-a5b0-963a4128dce0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3af038602c2f2f4806ce7d849b2b77b84837703c7c7db64fc85a9da9a65ca0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZDA71839502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af9b48190c0ee68a7979f03c852ac8a50599b85161e67471b6668bfcffd89ad. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:41:35Z), 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/QZDA71944286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d4529c83e6c56681d71360364e4ea4e0b5e68c0b212245aedd81308657ad6f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:27:12Z), 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/QZHNA1909866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c54eafc69b0816bc62c5a6c2846170b2875ea0de128094e32d53a173e05fb5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN42082187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2797288b7a084b27c38316181338f878edfcb28b3bdf327410267cfdaf058954. 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/QZHN42082190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0630e038a8927364d98362b2ce78e555499c1d3738accc6925b8a728258fa9f. 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/QZHN42082194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae7108871f8fc5f9a020b2b1d505cc40dfc4c86d3f288b6f181f689afcf5d9d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN42082200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c242491fa98ed2e124e8fac3b7d71ecae8b164d16b87ef7e255edd68bfa08e. 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/QZFZ22236994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385f7d447a53b9a0c247f248667767cc2a8ea57d6ef9e9f21a1c940b0256370d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZFZ22237000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f34206f1c32d9bb2dd409fa2a8ddebe3801d38555cbd420d0073dc2bdc1054a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZK6H2235149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6b51323a3309630a3dfb55177ed3788f58b0bf936fcc66ca9f109308dac611. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:08:03Z), 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/QZK6H2235152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3054c636addc2f84fee4f093744c2c6dc22e3b72386856564364b38480647d57. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6H2235154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fd82d8d0f6d097d17d798e95e5ab33540aec115d999c81d8ca0b0edcc994f6. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:58:52Z), 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/QZTB82287624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df948d5cfb8d1bdb4846e622be51e2776f3e456846ad00cb8eb51f17b83a761. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTB82287625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548a0b1bb1ba3fec1e86398e2fc2bf826d1220f3ec49bd0a5e946c83e81ebc3c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:12Z), 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/QZNWV2340650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb16d20bafcb71beb33791ce33beb03efe7f851f80dd211b26d1850e31a75ca. 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/QZNWV2340654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2f75e43e91f1315dabf6729f05a126820125bfebc7e6c66b266da32c30bed9. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZWFQ2387134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9637a6f7a99bf243186d62e54a2f87241c0cdbfb8090573ab6deef68532d1ab. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:36:25Z), 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/QZHN32480591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d37f9336d77f8e24aa10c13dccb1449771b86c80b020cffdb68feca51829e36. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:41:31Z), 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/QZHNB2489872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d1fae8853db0b84990071314759b45e1edb24cbc4072d0d30e5bbc4e6ce65. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZHNB2489875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb910956388991dd399b505b9eed8bd86ed080b075e79051f3bc0bf7b9edd4a4a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHNB2489876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1174bac7ed2b8e545dda52a8d42d9a88ef151a6e458346b635e0ee2caa01d5ea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA82442506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c794daf85710f0ec6806a439fb123cbfe6231fb43a523ef359b2ffca1657bf9. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:05:23Z), 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/QZHNB2489877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb043ad54658b09e6c29fcc8238eea9c6deca2051d2f3d60c916ac2c77d30620c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZTB52418377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1906e219c449bf14628b3e78e9cdd5f35f221fd0c208e71a9ed3365013959666. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB82469331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc9882aa6726ae09f33e987ca29e9a66351a24f5c5f99f3b60a91f258609c12. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTBF2489864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13634711cc0021b538fca79c22f06e1f0291623428a9ed46cd3cb2b9c79f8871. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZWFV2497523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b67f96b043ef460026b6f276b34a80b29747e60772acd33200514718bb5d844. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:23:26Z), 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/QZWFV2497524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827d65306d0eb8bb8e3001877e396701568226fae33c31a55959b29aa2af2e30. 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/QZWFV2497525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81864981a869e0ac64f54cb2bff3a9567e19077eb4f113bdcc060a0bc314f421. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZWFV2497528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0228d65b3b1e70706c10a0abd45ed4bef386858ff8e04cfc5dbffc8fc7dc084. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAJN2542112.
P.S. lets humbly acknowledge the special ones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be6bde6dcd6ea519b6fe209a70ff79437d65260b6009827dda159da81b5427a. 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/QZTAT2178003.