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 0x5c0c856be1600420e40cced80b88351f1c08c6c1dfdb2aa49ec8b7e7668edd20. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f2906c2-68ad-47fd-8c69-6fa2ad7ca109.json and https://artists.proofprofile.net/proofs/artist/9f2906c2-68ad-47fd-8c69-6fa2ad7ca109.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 0x07a35c5e4c650a756e22fa014de565c313f47903e5abbe96c074c4006a0a09f8. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:20:06Z), 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/JPE651500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfedb6d8c8df535613d69ee817876617931cbf3e091e6da496b0f98f8d04131e. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/JPE651500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd219221eab8abe86ee987ec661fb9ac30446e087dbadc0f24bd0fc4b7762bff2. 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/JPE651500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9af94b23c53e8b0d094ee85b1d2423660090c329c26203a831aa844a7773674. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:12:06Z), 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/JPE651600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2307163d80cd44c578cc6f9c275edc0a2986b0166b199e58443083b746b9b200. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPKI01821617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd0d91b67bbe57ea9ecae2d0d868698f4409ee41fd3521c8ada784e2c7f1a12. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPKI01917679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4ad7f4ba8b28a78045f0dfd9310454a4db4e2ae1f922cfa8fac95beedd6b6c. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPKI01917685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e658a58026487c5ef9157d553df3c5d5075919d7b62bb4cf6be5fa8ce2addd4. 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/JPKI01917686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53172236f466f53b472e8d1236e3a3e259c1bfedb1b47132566d3484f04b200. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:08:10Z), 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/JPKI02215872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf5877117010394a2468c75833d385e7038263d59000cc0656264f07e8a244b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPKI02215873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b7a6177339c12e8ff2da3e163043e63dacc379449da8d872eea0f9ba49a1e2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:15:03Z), 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/JPKI02215874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18341470a7be0e04ba8e3c028d643f80f786a0817eb13fd17317069d66aa1555. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPKI02215875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1232ea456dfa4a03b4230dc62bc881db0088e4b82187e05319b1f33ca122d66a. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/JPKI02215877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf159f1cb96019191344f08da119af16d9c866f207c2e7750a9a2ae478cb6a10. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:45:41Z), 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/JPKI02215881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9467e886bd709a1d0620b79645f56e7a8f1d86dd645313e25c452ec4b4982ae. 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/JPKI02413372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95777d7cf86cbf1501ee7303f8e3dea19fda1936575a403849be4f5c94fb4205. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPKI02413373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8f014b4fab72190c5c6e8bc51911935f147ea65585b808cd832c8408ddf569. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JPKI02413374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9650584ff11d1af8a94b68184bb5a82dd9a806ec4c8e604ce95ceb64538653. 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/JPKI02413375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657603560c4cad21a6e339bf6af75dc5659637d4a2a651173a345f2da706e2f6. 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/JPKI02413376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa9365fd4c7fe3bc2f033b14e40e4566bcbc96d16ade6e71efc5c2aed99be4e. 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/JPKI02413377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a05a116a73955b6cee62ef0ff83f23d26bf0a16d1bf0a6fa5fe80ad08ed6145. 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/JPKI02413378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a2336ed972f87288366c24fb4943aa9bb9e3de0affa3915448e71011bada5a. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:51:43Z), 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/JPKI02413381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec8ab45fd7b3e98e9a08aeddf781b9354895067a3733ece0d49262c01bcd5fe. 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/JPKI02413382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0328692f2d7c635a6d3dc603d1e4b1f733f57e886f5dd1f4a99c07fa347c62. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPKI02512690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19914d8365b122879278a959b9ad003304efd6ad4a2bc99697e84b324bb50e43. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:19:56Z), 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/JPKI02511427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161ce95fe99b521341894ca9c88e2b860bcfe195864ce2c8faea9853f7e1a3fc. 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/JPKI02511431.
Circus～Rondo without Answer～Beat the Moments～The Room of Serendip
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c3a33577f7d3e1c5db2ad4b45f5e185b24ad341e291d04814eca175b1fd790. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPKI02511432.
Departure～Insomnia～Faded Stream～Across the Silkroad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d12d5766deb059b2caf43eb5edc7baa30c2b2c8816931b253e40cda132f0038. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPKI02512367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eb9e7669c14e93d627cf11c12518c8bc26399802b60efb0b56ddd6ecbe3bf5. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPKI02512369.
Hidden Sanctuary～A Journey to the Cosmos～Migration～Atlantis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10483f977d95b4f288e1cdc259728e6ec0947b0c6f9576287ce90d02e13d78dc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:50:17Z), 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/JPKI02512370.
Nebula Dance～Egoist～Jammin' and Crammin'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c0bb5c007f44374128528dd2b7a2f1a8df4bd03a2a1c74b956787345ceca4d. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:33:43Z), 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/JPKI02512371.
Cancellation～Scroll～Orbital Revolution～Gemini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18498c4b6f27b78abcc5f7fb31c86e002415b4b99e47121f27c7cbbb8d2657c7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPKI02512372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0781484bf8a493510a959cf23c9e3f9c2292fa0852107b9b4e593f1fcf0902c2. 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/JPKI02511472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2d9cd165eb48eadd8c6d3cd785886e2bd2a74834e0970ed2f2235a742e0a5b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:32:22Z), 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/JPKI02511473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55e2cde59eca2db69d1d8cbdaf2c277a97c338c7dbf55995a7c96eeb44e4065. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:00:13Z), 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/JPKI02511474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf995189620f42abd158e1352aeb37db113a44882445d70628d6df18cada7e317. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPKI02511475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f800e746bcf380a58cb8ac5e1ca4b93a46928e3ac02c3080028717f811ebd29. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPKI02511476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6b574a606f9768032ee2c86c342da8eb4f64d0baf0aaadbc1718946519c66c. 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/JPKI02511477.