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 0x0b5f3bbd73ab2e1d88d2895f9abc0a88e9f189ce02d30f825cc0393e725da7e5. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbbe8c59-d564-4e0b-b92e-f0f27e4d3d60.json and https://artists.proofprofile.net/proofs/artist/dbbe8c59-d564-4e0b-b92e-f0f27e4d3d60.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 0xf3f324c8fedccb476336d78a28df54cf10d01a2b7cd41ba5412c759fc2aebf8a. 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/QM4TX2167069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0b016c1c6b213d978b197b758b367d9d87b37f405370d0fcb3207e4b3e6715. 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/QM4TX2167074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab5da94f4481577c6405f229734eadc527637a20673f7d66dcc47bf44ff6255. 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/QM4TX2167076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048cad21daf4870bd5c0cb136e4a84886b7bc8744491fa75e9a09b6a2b67c989. 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/QM4TW2153349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7253bc4d4a2a784842c63dfb0744aaecf7ba793eed56fab193bac45e0dc252. 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/QM4TX2167080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3113277653a1e2766af94ce5ba26a26372439ea460da7f6979149aa04758c5. 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/QM4TW2379889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe60d1b30b6627ec77a3c0dec2bcafe28b14e180a7a9e9cddbd7d86e69d5ca5. 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/QM4TW2380200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a23b7e793f4ce2c73649455efafceaa51880c010488c4f24dd15f6819cc8ce. 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/QM4TW2373961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a6137d15855bb4be28c032fba535fb4cc60a5f3a44b3901262ee3d984a347d. 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/QM4TW2380201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6bd264a5879dfddd66706b6c07f97a20c385bca27c56849128892b35c9dcb8. 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/QM4TW2380202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83676c2f0798d20b94d04c893426ff31f811b84005776959a474ede6d8b44b5. 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/QM4TW2380203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dc7506f3330e1d3085a55dbf7fb5b402a856a2da9c6d3e93561bdc9bfba292. 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/QM4TW2381499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1333293e9d6b6246325f0821163aa17eb0c6897a1fbf451a09606e24ef6f851. 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/QM4TW2381500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fc4577bb24890bff8e219f5e94377cfa8a4203829804115b29e0fa3ca03ac8. 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/QM4TW2381501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468f3a57b7cb909698ed9875057331fcd7573d29075cd9367fd297e4b8727531. 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/QM4TW2381502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9490844eef694c116638e6b0e1f089e152bdf50f09e84bf0f83ae7ae1a16c261. 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/QM4TW2381506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda495ddb9e7ac02e1a46c742468a83ca41cc444f93aa3cbd6729231dc4ddfc16. 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/ES71G2200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5b0362bee9cbbe6294a5793d077e75ae8c613fa4ab3c36379f9b7ce1d617be. 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/ES71G2200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c1447e0487c5a713a3ae0d3fafc347c9dab3c85c73e64e0b28816888bdd56b. 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/ES71G2200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd4a4cef36b98a6a73a9a3dc7b5948e453fd04e871630cad2637d5a2065de77. 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/ES71G2200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001f440c0eb7a63f0ca520732125f3dc692bb3c0e7f1d926f74e23df8669a099. 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/ES71G2200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ffd39e6fe53d7e6748e830270d9bf4a0ecfc64b06a03eb682fa573380f824d. 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/ES71G2200285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fedb0c0c9c2d2b3c25eb7d2dd19a780c7c0220b3f439759035323648aec6fb. 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/ES71G2200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc684c290cddbcc8318200aa1e20bade0ae882954d44271039c277916f74ec1b6. 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/QMBZ92361650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271a08102dec5cdf6bc63d11a24948465e25ea046187da043ce6e1b9adabf863. 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/QMBZ92361655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21be70063e701d7935c300bd64f7024ad55efa92fec9766d63df7ced3f19125. 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/DEPI82213916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63e3a40cdfc2ca4fcd9920f263eedb3e40534995a8b82f1da659ea7628a474c. 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/AUGBT2456276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f24886f056b512c957116664f68e94965449a56747c5d11621bc56aa6ee072. 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/QMDA62258329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73b7d8ed5b5426b659b56cc0509b536b003fd77a5fd1528dc923d6794a59b61. 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/QM7281952384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765e61dd33369ded677ddc40353fc896c854c99dfa59bf7a020db19c8bf2b0cf. 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/QM4TX2127964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb992d8e9343cc2a0cfac4f6cfa7d58cc5f15491b2ad5a1d5c14eafe56f76b0f7. 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/QM4TX2127965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e0317543230ef4fc0b55026c4f2b365bd51ba32fdb9e08706086af4ed59621. 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/QM4TX2127967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d58ae78b6d0e077449ed14632ae9a2a03d4fdb7e0fdd7aca36d6fe528c9306. 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/QM4TX2127968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf32e48a013a9cc17908ea838fe8f2c02ffc70d28619873e2ef3a5afbe24068. 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/QM4TX2127969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984eb70dcd2a5a723793ed0b024b9171375ffa59527e96f6f74d7ad79ef77604. 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/QM4TX2127983.