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 0x576a6e1d57e4c991a93918daa5d2d977386faeb5a2d1a4cc50e6db0a4f242765. 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/e6ebce29-1496-47ae-b394-620f0ac2856f.json and https://artists.proofprofile.net/proofs/artist/e6ebce29-1496-47ae-b394-620f0ac2856f.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 0x9f71857f23c8b914566c518e5f6d44a39e52d99989bf2d0804541ff727296c23. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CH7811926665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3056b3c5331bc079c031ca3b26222db1712f900490da65345a27d4c05d8f847c. 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/CH7812042392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6202c97965095fe26f38a571bfc0dc1607fb910d45cbf4b0b63039cbe53a93. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/CH7812067992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dd39a19d66d54061222325b8c1dc65c105f3297c9456f8af114536939a4706. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/CH7812070544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c39db950c7d798cea065869775bb0c6709ad739b559e700d378cefdcd273cbb. 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/CH7812070545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa529292181b39e07d8e88516d675c463a1f43a146bc5d6bf9d72fde314ef699. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/CH7812070546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc60c45df139fe3529e00348d8761b8fccc47a4db0b2f06e4033f3174240d89. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/CH7812070547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d69ada266577ca87564f30a31e8b8fd59a269ed9e7d6649094b20206821ec40. 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/CH7812070551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd025df5ef8398a59d8540f71f2885279d86b9568492d26ce420b01063ddaee80. 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/CH7812070552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f791633469df5fd2c99b3af105186136c1c4efaebb09de5c2519b934e97336. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CH7812229743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca06462f6a9738e59ea601c8b92de0b133f3d796477cc0308833feb2808750c2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH7812353084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c19b4cc03283f51832728f0da5e97b747aca48fbb33753b831b9fe02768ba0e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CH7812412474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc3690b40d2b88aa0ac61bb098079f98f7df6117c7b1c1283297de76779bfd3. 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/CH7812415376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68808772a8308dbce1e64244cc499f6a2e0cb92faba5644afd5667212e3cfda6. 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/CH7812415377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a8f0cf7bfeff01eddd2a9fadcc92ca7a7532ff9753f47feca9db4b1a038c8a. 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/CH7812415379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7a23f48a25e32443ac748088d7906a3e0e7cb00038b5623ec99ece18561cf7. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/CH7812418024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677a3192e2e23c986515a600774ca6c43a9dbadb75911567bd1f8b32715a863b. 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/CH7812545680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbde42e46839f31b9de9bc7a3c4411605623b9e2b18ab790f64fe9564364bb34. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:48:38Z), 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/CH7812545683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2e7ed6adea40fcb6d66509fa38e331bff467507dc8e5a3cd67af6d0714a4f9. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:25:21Z), 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/CH7812545684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf06d4750174cc8102b2f53b77accd01788d1d11911fbd412ae5227998686afc. 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/CH7812545685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b5404c434a567e4c6c91e97e16cb8fcd55fc478bbc6bdc00a80afce8d77ac7. 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/CH7812545686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64875b78555d6ce6bc51330ded1aa3c06fa637194a8f4e480323c393a5932b66. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CH7812545687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33328a36b77e380089f91dfffe7980718636263523ed5e952cf1fdd2fe19e9a1. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/CH7812545689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3880214b20d5907b3b6583d34c738ff556fb4a4a8dae94b4a6c1f53fae7e9f1f. 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/CH7812545690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547112c2f6242ee4db807b411aec3afc7917012e303004b7b3bde365b202948b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CH7812545692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b316f112d938c94a01b823bbde5288d3f74e67bbe365fe071c4b719c31ef8b. 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/CH7812545694.