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 0x427ebc367ac4ff4eb23cfd604f9fb06e354b98c95cdb95f9421e2edd40fb8496. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adc5656c-30dd-4fb9-bae8-de8ab85428f7.json and https://artists.proofprofile.net/proofs/artist/adc5656c-30dd-4fb9-bae8-de8ab85428f7.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 0x956647cfd056a8dc99785b130ea1da6567f54ec7ef4c5ccf576c239139bf413c. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/CAGOO2444760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe8fd36166bdd940ddb28987f38a65f3b64de8e789574a59b6dac1825398aa9. 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/CAGOO2404932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e4c7c6a4e4e4e97da8ef3de4803fbec879a0d8433d22e60309151e55596ca3. 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/FR9W12419438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbe78a34e85bc44a66d7b1dc5ca2c983e8cc415681a41094f02b2bcc6349f90. 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/GX89G2403034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9d86d274fba7fbe73a7b92284f76eff14ab430513c5d7bcb9bf101f38e0f56. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GX5MX2381066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f9804e61f3e949dc878bbeaeca0381caf4593d2770e76a1fd58b15e43ef4a0. 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/GX38U2362140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b4f9faad341405fa5986b8ee9a2063bb899d5cac8ee07349c4012c6398035e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZMHK2325905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8471237156b3cdcd8d75bb313248851aa182ba6349e1bf1ad55946320b8ab52. 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/GX8LD2309739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fabb0feeae52a966ec3a72baa0b5a2ea0f0803de2bf4f8be437af99c5ab0a05. 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/GX8LD2344343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b93a013689df8b138d7257b6ea57f90801b71179d50975ef28c2a43bb11ae8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX8KD2373739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fcb864625d5bedfa749d09d6b9745c73eeb3d52acc670b31e248d9fb002327. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX8KD2381582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2292bbf1d1ebe3f89c476fb8e30a128f995d51dcd5da258d6679feaeadf832. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX8KD2309507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bd17d1b1bd8520fed059810d29ff099f2e4db12efae07a5b22a15bf0a7c269. 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/GX89G2328972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d4f13ed733cd189c312206dbd9ad10680fad92eaec62145968a1ff075c525d. 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/GX89G2385301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ce3290c246194439fbc43284a079fb1f8a40e749f70a50720304a3c2f8cc04. 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/GX89G2370657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbc123200be72c3a358ce308b07a733ac8753911e08132f8aa03012bd29058f. 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/GX89G2393344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591bfad572715ae25bc74e5d026cc28e1db51184eabb61a169288d32f3a940d6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX89G2387455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f62fdfef3d6e3d629d720b02dbe88d93306ab08d6206bccf8b9b73b4756cfe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX8LD2216070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21338d6d9cbb48113498a96c733408d3ab2d89d93317adfd61fa87b080414be. 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/GX89G2338705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0c4b446c8ccfec797f3a985b20fee4c6d025a5882db2ff7c25cccc0c9f1578. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX89G2243951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65691a1fa951d847761f14caf5458d5219e93ca9342c4b4bbe6cda262ff4ed5f. 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/GX5MX2243574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e512f0a55a8a479f1555b9954e619f630f84c092e694da08c3f3daf3866805. 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/GX5MY2122218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9d60fc4f2592b53ace21e590711345ec4aa542636652aff881a1b7d2640474. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5MX2101886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44a958de788c548283bed9564f3242a8683171c67dea92e1ff4b64d0c437a41. 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/GBSMU0008014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa485f7821efb347cd83b80c5bc8ee75361c8fb5d75dc4b06db989e868d61b777. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBSMU0002949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa835fef411016099a802d2d5e8915a7e2e4f61bb3413320eca87c8bdcd83d9f2. 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/FR9W12447621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b0df6c5f54c22190364837538b70f288e2b9ef6a7038cad597a11a571c6c10. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR9W12440074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f1b92a7a82a268aa60ed5664f69958613e5bd4a339b695d3a3db5b86b5e1c6. 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/FR9W12447623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b3082cac72169078a78276f2f6d9271edd93ee97a92896875d1ce4f4b1a877. 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/FR9W12447624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba45f6da470fac372a9ebeb21ee08bcfbed638d75d7b95b5e944682ca7be3581. 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/QZNWY2349501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e4c7c6a4e4e4e97da8ef3de4803fbec879a0d8433d22e60309151e55596ca3. 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/FR9W12419438.