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 0x59593bdd61a67ec43e06dce91753ad1560450cdb433309d4b59a8ca30019e5fe. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a787105-00be-498e-96a9-5062638219da.json and https://artists.proofprofile.net/proofs/artist/5a787105-00be-498e-96a9-5062638219da.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 → 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 0xc6efa771d5934683338e691667d68bd4d700af757c6b452ca103d5247fb76702. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FRS182163853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97afb4e2e32bd12f5969e87edadeb08f0c809f8635a16233546ffead52cbd555. 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/FRS182163856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4bf1000afb925208c4cea89c9e543a1d9b7e8203621c768aafcd17748bd1d5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRS182163862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c904a51b0ef5362cb3ef1fab62176ff2f4c6bfcffe44dd2143d082723070e34. 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/FRS182158829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe051c4106e4da311442fe20a171b30f238bc76849cbbed9130cb85964aa50b13. 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/FRS182158831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44460acb7bf863b7a353948a3af0475dc3c28cfa66bb2cb2dba20c4f7d53cdba. 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/FRS182158832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8825a51b828dc89f2ef29096f471ff2917412dfbb8bd27e7a483d642166a9e12. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRS182158833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5220684645d0d3d664401fbe7f6bab357cdcf21e57d73aa841a4740dbdad474d. 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/FRS182158834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc7e705ca9871d6eec6e0b3223d6d590cccd92d0f226a435247b7ded742dda3. 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/FRS182129453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0988e552b1bea2ce4eb7010bc24f24e4d590992f9473b24b265ab61408512c31. 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/FRS182129456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3455647ade5fcd5b9edb341786b3174f55177401a78ba0ec1b27d918cbbd96ed. 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/FR96X1870942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be6bf942fec327eaa8164a43297f848140d11fea9668973224f5f249a4d778d. 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/FR10S2201206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa699cb4e7ef3d3050b739141b7a2d906c50ec1e54b7468f08500a2dd639945d. 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/FR10S2201209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb68a8c715035b0709625c9e77fe84422ef549f656c525350ef980826080a76. 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/FR10S2201210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71754101f9700a68b21225a7a571a78b3f856b947a20c5e3e30447a3bd470a9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR10S2201211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7893ac0b856ff592421fa5948f9dda6e5221b4a77b20b701a1486eb377138aad. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/FR10S2201212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223b20bd87b6227f4aebefb0c2e79b632f52c5e4401c2451bd6dab00c646c652. 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/FR10S2201213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e57eac889c59892af7c83e63821878eeaa237eb7456eca7956192964119c24. 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/FR10S2201217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3545091ec055c2cc6e51d19e678bf7046587960803fed231de8cb7060cae0114. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S2201218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ec1c2dc36bc0ce6576411c4f13c47f1532c4a4a459a992d5bffb9f6a058591. 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/FR10S2201220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c68ec21b6520e60c44ddb445d50de09ab4ad20f3eccb729ea6ae12460f65b1d. 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/FR10S2201223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9678407d0fc20a8185e996ffbce066deba515246472c4558d004d69d5c79c92. 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/FRX762318642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42a1096f6eb5735fdc107e3046521f02f5f90ef5fa488d4148fdbc60bd4efc. 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/FRX762318643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa2b2b26061ed1a5e0113220d0ed1901daff5326eee8fcff2c39a4a48d2ce29. 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/FRX762318644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1b4b870285e38d8b037d931d850fcfa3db790a4100fb7459c08b489420c3ec. 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/FRX762318645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d5d89c696aa7cf0623f69f75ffb7c64965b8b41c0dc7ea18511d8331f9a6d5. 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/FRX762318646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa814814d1831f4b83cd7f64b5382695878e561825f175b696d6d2177ccadf038. 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/FRX762318647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321961f75fb4d5b978751fecea70856e3e952a3fd2e847cd3f5389a0120b129a. 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/FRX762318648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967364e1a91938037a9f12e55386c288eed77c9d4ec8d87d160a7a1cb5704439. 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/FRX762318649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a61eb464508ea686f7823edd740365039fae7cd75488e67a08fc2cdcbe449e1. 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/FRX762318650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fe08eb60befa1fca8b8bec544419e1c37c3621fd8950e092061d6b27435ff4. 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/FRX762318651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67082ea9e0fa239da4c2dec58df7886a33e8857551cfd1346640e3bea5b92d0. 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/FRX762318652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c076c38f8499abcae5478e1b594c047da3d6530d4f6898797e196e0e246fd40. 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/FRX762318653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4f617231bc3da3f57d543bfdad660ee63209408614961bd99d32efd5984278. 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/FRX762318654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e8fdde5177e3de7c77d6eec9a5931ccd36d3484cf88929b60eeacf1bb43dc2. 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/FRX762318655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e3e1f959ffe36f590346ca6c8fe239903766571c8195604d294e19d7148ddd. 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/FRX762318656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae1ea8b3e4dc31350dbd0f8997f532074a09710731f274690282fd63435c173. 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/FRX762318657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f183daf4aec55cfd98e221d85be6aa388902c0f8880ab52051fee075c08e758. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR10S2425463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1188a1c582e48144c440cf8e2be624ed1daf441c04073ca5ad621914de2a208f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG732105759.