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 0xc4d63ad19f6758cc4699eb3bf55467e202ab6768542e8ee49efcb5cdb7ff7126. 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/f99638f2-d292-4909-84cf-df32f4322ff8.json and https://artists.proofprofile.net/proofs/artist/f99638f2-d292-4909-84cf-df32f4322ff8.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 0xe4b7ab87902f9041dcc2fec2a3c2ce844f4deace92bd45d65992575b355b04fe. 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/GB8KE2203323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b29ae7a85a0936955a1fa2c665a2835a1c84c128d60052d2ce91341c0ff854. 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/GB8KE2203324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde00c476687d28569750eba23b0ae01d5c6e7b01cec9c7abee5f8f4c3e3fd216. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GB8KE2203328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a29fa492722d8b86cf8d5b74ae0a9de64d995a73a38d03d0633bb9b4a7aeb3. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:04:09Z), 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/GB8KE2203333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab31a5da7a90757e9889c0b4f707b22d47a149439d697bd49289ec07d453a3ea. 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/GB8KE2203334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1eaed06f6b6fb8787c9a06051b96bf5922055602c4200dce56b569bbceee78. 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/GB8KE2203338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788f920b2a0d3c66f0bed9596b0c25d699793ea77ff7f35cb930284e59aa5e05. 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/NL1AP2029312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403c6cdd01df1769a9a028b42c56416a7fb9dade29608df76f856ef53fdef7e7. 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/GB2DZ2320005.
State of Flow Ft. Oli Gosh - Adam Pits Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2893428beaa0fd3e01b33232d24a472d9bf2d25db4506d4812f5194b81206a. 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/GBEWY2100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad3c2dccf3dfeefc31b02ac095aced483bec78f8f717efeb3eab2e7860ef38d. 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/USYBL2300728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7a8379df3f477300f38a00ec3f1fb86f2927f64ac3427baf231ac432c618ac. 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/USYBL2300732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7175f6545acacbb4db80616d71b68af1c4ddcdcdf97380cf18686170c5aa6e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:03:59Z), 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/USYBL2300644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe234fddd0dd1e22aa77baac4ace80896394f20a7e672f8b3cfe37994709b9660. 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/NLZ8C2300427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c10e9892957bfdf787936d722390a2e1478ae98ff954f4dee64992b9e8f2c5a. 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/GX4H82100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0f9da414706cfd95c4f272614d83f9a6b353ff556b2690b04e4da9d55f2090. 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/GX4H82100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6ee192063066d81576891361155b89b71b6aec9b242830ef8a2c3910545ea7. 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/GX4H82100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186f049f8c140f1ff29ebc07354866aef824fa3d20ac9ae5011f57735b77b277. 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/UKL4N1700198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c8b958887692d419f8d2aacaa502dd73336b1dbe0bbc750084fda2d898b2df. 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/UKL4N1700200.
Warp Drive - Rudolf C's Psychedelic Envisionment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b56495c5d576d5049ad262e549d420ad87690bf9f6da2c9d43ef909de4eb0b. 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/NL4UC2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977ebcf36580f93d7750f17c8ac1538775abd9636f0ef9f910326fd490d03a24. 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/NL4UC2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4817a99e162e110e1a1406ff423f08bdf7dce157d2bb272a651242a40920f9cd. 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/DEG932101629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309a3be8ad8405e92df595777a2ff0a4cf04017487c8c3b78d59213d7a26298c. 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/GBKQU2185286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c3adce2056f4ff0f7064ddf76bf129d861acf41bb95a664863e4ca180a8b28. 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/UKJEE2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2542124378a349d6956ebe620c715e34c8dd7bfe70d1a21314af05537c87f6. 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/UKJEE2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a6c5c868cc76dd686f744868d7b76b419165b52eaea3f9224357125493da39. 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/GB8KE2058662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d864cf1653d4c1f002f2e6cef9bfb57c05c57e2ae873225d03e72ef0a179a9. 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/GB8KE2058663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312d864338ab211c51f6c5c075e6271422484b77e4260eb0e6f7b3f3b0d2cfb0. 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/GB8KE2058664.
International Wafter (Ciel's Vocal Re-Fix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64478a89e7a30475979886fb569503474efcbc323454b6f9596bfae4b5f58fc4. 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/GBKPL2092723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a93487a2cb2bb37ff8b6be30b9e117375be801a25c5263a8a5977ce4d61e2f8. 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/UKJEE1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b3b8f0db6c083418ac6c92e5413a9b7737e7c207125d2bca22f879024032a7. 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/UKJEE1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc6216ea908730745fb2f80a6b58dbce68feff55bda3a701952c41d42815e50. 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/USLZJ2076115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eb69b7fdb8498d98c7de9ea3743db33ea7dbc1ae12335d3c51620c05817d24. 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/USLZJ2076116.
White Bricks - Adam Pits' Topsy Turvy Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba677b1b4f6aac4b78f40f535a115c0cdb5d3480fc01cf36ac2b044d9e510d4a. 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/USLZJ2076120.
Energy Breakthrough - Adam Pits' Lightspeed Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc7f7f6ce32bec78fa8960d0b52c92c6dd1c89635b1bfd9f6be45c314a67e40. 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/GB2DZ2170002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9645cd91bf505e0f26d39b3179462fe1c48da1b2a26a90fbb13cafcab1b9e79d. 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/GB8KE2413225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb5ba3ac0fc326b127f626529b3a5699e046a1b5f6c5b04ed58043ca857de46. 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/GB8KE2413226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee347e6412da80793cbfa12308ee91fe6879ed7b46c7c110ca35e844801bcc9f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/NLCK42422053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cb3acf1f001bcc6366de42bf367f121a4c3b3886893a37926a2f5407b9b1c7. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:34:33Z), 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/NLCK42422054.