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 0x107a9e805ed743fa8506a500b3efed237ad620780ab093ae2c9ecf5f2986f9c1. 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/8c8beccd-8dbf-4fc0-a4f1-b10ab1e410bd.json and https://artists.proofprofile.net/proofs/artist/8c8beccd-8dbf-4fc0-a4f1-b10ab1e410bd.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 0xab53284f386101fc40c140945858e8ca80f6240f351932aa3f82687bc19b503a. 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/GBFFM2263903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56893c74daea75219c23de746060ffdfcdd3ee96668f2b7db0cfcbce31a793c1. 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/GBFFM2263905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43bf6f4ba6c6c96717f7b38da272407c148f1704825f4d93a63e84e1d39fac7. 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/GBFFM2263906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a21ce97eefd81e181157cbec65beab85cbabc1648fb60a905980a867fd9ed6. 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/GBFFM2263946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe636f56106eab63bf2beb9cfc1af7cca6a95d723ea081d5e96bf3370a996f56f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBFFM2263948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c21be1442affc6cce034c0d8a77891399d6daead87cf04a99c61b6b2773e2c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBFFM2263904.
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 0x3ace607fa57de0f30f855e0d5d81ade3e40b860f38a70e159be38eee2eecaf27. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBFFM2263947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe695a970c3b526d15a556838c3ab1d8061475393135a0db72b2d08c0ab3aabba. 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/GBFFM1276603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517f098891c6e11099956919aa4c53581371a809fdfcd134a8c7a5c184aa12e7. 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/GBFFM1276609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a45ffd4628f4ac1f23f77404125e9a9557ff1bdd8ff861f0f69ca773b99802. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBFFM1276602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57550f3f583c173c760155bfaac19818ce93597d0af33e2c68b34ebdb313bb2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBFFM2030313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f8871bcb4361aec508d78e8f4b353c323f2df107dbc5171f0b7259b5de8059. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBFFM2030339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3999a89d6dc990e1a4c5afd6b56b3e499eb31f91518415abfb98dc3e9d356de. 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/GBFFM2140942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc330edd78f9ef8565ec215e1f21d22d3b15a05a0a741f62d72c2dc32b5635fc7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBFFM2140940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fd59b25071300ae96933dc7194fc3440e82aa204d0f5cf268237189d3d1450. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBFFM2140947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df22498d31db921de3c3c9200814091551effc390dab3261fe07fb9f051ca0. 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/GBFFM2138317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14464888d39561576f5124a7d7e71024b2ed4b58f580529eeafff3fd0843a66f. 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/GBFFM2138319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaa2d21bf6963cbe353e2d0eb02b619b39a2d6367fe32a487466c1656e82579. 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/GBFFM1916575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1719df27bb9d0eb69905fe95cb8c7a9ed2c1af162a8107d3ba5f3dff7b17250. 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/GBFFM1916573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f6dfb2623c58d379baa41df94d3243a84ef4f23c067f3c0091409f408411e0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBFFM1916571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe218825e31041b6ffc58d43a0fe7d202cd920cc62d68b7e9014595aff47ebc7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBFFM1916577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3eb2a8247771903579786fc66f9848bec0e95586532dd396543d72e3e63086. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBFFM1916572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda568087265e009ba83d3084b581e142b8b4e986493e0549bb2ae2611db1ae8c. 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/GBFFM1738273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf2449eaed54c19ff4a965077b0d6d0faff51bbe755f82f9b3cc80ab79fa88a. 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/GBFFM1737908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680dcc1a32c35468c965332c94af066ddd9781384566e7bf2a135ff108290f4c. 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/GBFFM1738271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa266042d57682e1dc65ba5503f3c9480027c4eeff6145a7454b8f8ff65dd1dc2. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBFFM1738269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa746f76752870b33ce89d1229cffe91fd1d14f37e4112ebdfa4304ec29d3bcc7. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBFFM1737909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc036505acb304e39f03e8c49f8f33824755dfb725d06e4d32712c3e2bfd7b. 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/GBFFM1304203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec34f4c9fc0dffd4093ad91683ccc0c6873182607d34688247e55132c676fa8. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBFFM1801892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c41943bded13580169cc1efe4b6c7685951cd6990a5ff102463054da4a17006. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBFFM1802406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ee5686415d739657e0496238211b680404e27f0bb0948149c7f16e81fce19c. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/GBFFM1801893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18a831d758e5ffd5a43b890b8c61392333d93b17d36d105051add76e25624b0. 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/GBFFM1802405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ac311429b496b7a4b8954ae6b10f4bcb9194aff239d0eb5b0730c515e95834. 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/GBFFM1801894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8da7c800c015cadb78232f2242953a5e4cab71e4fa002350812fd81b753136. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBFFM1802402.
Beat Girl (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcd25576152be4e1d97ab8a016db38f32ec47764e1e030d0adf30d717f487e6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCABL1337081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340ecd8cb72e68575bbe4574e1530f381a9e4e9f041623253ab99479188b7989. 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/TCABL1337082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce96ccd797b3720f215ae231ca014fe8715498cfcdca661183e44d085f15d77. 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/TCABL1337090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c421516695d74d75b8947c543578527122063102e93f21f8cb4ad92981dac6b. 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/TCABL1337093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829990df2cf138663be90e8022a196a2aecefa6840fdc60811813f31e8d23c5b. 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/US36G0600039.