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 0x3d3a4f094588fc375e2d3486e7d08054c9bb678b7982d1ca2b9483ba5ff5c51c. 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/6d5b136e-6d9e-495b-92eb-081965e663d4.json and https://artists.proofprofile.net/proofs/artist/6d5b136e-6d9e-495b-92eb-081965e663d4.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 0xbc3caf9411999053dc02696d8590afe07334553238a177adfc21a4800737bf9e. 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/TCAEE1907770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2497de7caf3d5b14e81370aedfe63ff9789bf934f6f19385c5cd129adc2b01. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:50:48Z), 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/TCAFA2002143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464a1c359badd30ec739bb08771dbd5ec947627d0e9b4cd70eb6ee5473c19359. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAFY2155210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbe9a4f61500bc8e1f8cb32b51fdbe535632053035925fafa29efab79d90b04. 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/TCAFY2155211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092a4c1bb1672ff6a8640627e1282e285f1ccc3476d14e7feab7d84be48235a4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAFY2155215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadce25e014b64935166dae654f815be099f48edc370e96eec293fccf74b68a7. 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/TCAFY2154135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba13d2f89025c9d39a155a9456369b3f724c99c6a30f5afc7c8508e51c378e46. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAFY2155198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957c7ea5ab0d9573645bca6a4c0028eb5e38f29bedd9a4a07382543b57d9be6a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAFY2155236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5328891ac738ba564f572d0c4e3067a7ecd8795949d9fa872d082f48529e4e. 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/TCAGO2294788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f05efe616a7a0fd0c35f8bc914800869d897f2eccb6c231fec48613359369e0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAGO2294817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fc39d4eff7be0dcab66218ee7756ac41f23f3b218c3bc2484e7a53f4dcb13b. 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/QZTAZ2465952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7bd7d6972646697588f96a898ea5d6ff4cd987a1e79721eda0c496e0b446e7. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZTAZ2465953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e85cd486094181180922ebb17e67bfb60ef749bd6d327b05bd9c4f066c6c48. 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/QZNWV2406676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc830ca5c192420153df8cd06982cb7d8cd2d3825dd2a1a18094df9742ddace6b. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZTAZ2465954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdd6ecd1a42ccd08616b3f14bdb02392debcb099a8fe2e8ed6c948f3c39f4fb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZTAZ2465955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22572bbd3d765b44cac87f9a0c96ebf4f8855628db1163e4231798552ec08c0e. 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/QZTAZ2465956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725e2e38ceec2b7028123af565f3a27faef996dac6a730f310298d73c0c3d4d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZTAZ2465957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed33cce91fe144400a682830c2ad04794ea5faab723c2344812fdb0760da0ff4. 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/QZTAZ2465958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1a41b43d21d47078dc156b94dd015c75b94ad58a8385b6e2ace1c187d5ffbf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTAZ2465959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37d9531e695506e2ab5468b19093e33341bf0a10d782521b285549f749f90d7. 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/QZTAZ2465960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf010aa994e7734a911862dd3cb33cb2a08a0c41c4b5377b7302f857a5107732b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T09:01:05Z), 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/QZTAZ2465961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6163735bedec47515ae46a742179ecddc55ceb6c1eaaa1bbbe3799a0e3c436. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCAJD2401360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa924c45166b8394ca2e37ba4e5bab74ce7ba4bbae930b2f4eca50fb925536838. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCAJU2573872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b127f79fa051ace4b5886fd1ca94bd439cd5ce77f115dd3f9c986525f94948. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:29:00Z), 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/TCAJM2582755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68396aa858c3e30a5d6681f3cd09f6e1ae138e6a5ae4161c3d3d3a1a2d980dd8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:58:16Z), 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/TCAJH2588628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6163735bedec47515ae46a742179ecddc55ceb6c1eaaa1bbbe3799a0e3c436. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAJD2401360.
I'M LOOKING OUT THROUGH THESE EYES BUT I'M IN HERE ALONE