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 0x34bb1e7031001a00cbc2b4594cf40c29cb2570adf30f0188332d450941117d41. 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/a01dd82f-1879-4f02-8cb0-55aab9f539ee.json and https://artists.proofprofile.net/proofs/artist/a01dd82f-1879-4f02-8cb0-55aab9f539ee.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 0x9d7b887068c7fe94f11a34a76553e642408066734820d4919213f2d57fff27ff. 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/UK6GD1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fba9bda7847346e4fc2ca461c2b89c21079de5f13eb1c48f4db6f735d12e5d9. 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/UK6AK1400257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945c165597d286fe4b2a72ddc454cf295d0bb2c3719c411f58cab59ffc0e8b1f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBKQU2051233.
Mr Flamingo - Paradox City & Ryan Resso Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874eb85d8ad474a071054fefa3b8890d608c47407a24a3267a9ab6f041ca73c0. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/GBKQU2051234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d1c6b83e8ce8bef94002fea46e4f132e461cd39fa9d4f8cccbe33d46fd0407. 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/UK6GD2000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889d7983cf4f7d40fb82d7dc410d494912b203361631d3cd1794ff8d10c785e8. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/UK6GD2000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8323ba08ebbeb8ad721bf300b2a1e860f69b909251b53a0abaf390a43c0f56fb. 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/UK6GD2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133c815ecde6aa4ce08b35c575424e94d9eaf3ea8f47226cd0f6e84849f8e89e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:26Z), 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/GBK6Y2118001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823ffe5c4e98166be9cb9646ae83ec11c43ce5fb71f6900efa5674f9dea0e63a. 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/ES94G2203005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d5e58e94cacc4b3a475f5f2d1aeac536576fd9c110dfde4a1b37b449f82fd4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QMBZ92479600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8debf9ff24a21f7941c862d268d8a44f3f341e809c37e2d8174c8992b7807ee8. 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/QMBZ92479601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42537a594044926632e98917f7d295e5dcb53f7457a2b2c04acf29c4f5727b16. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM4TX2563459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8ef0826c7cd73e77fa6f1ffa418a1ad38d7f20834e5e14817beabcc66adbb3. 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/QM4TX2563487.
Vibes and Mutual Friends - Rich Nxt Remix
Words Fail, Music Speaks EP (Rich Nxt Rmx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b045b95bba59d37f7e89d2f01be7df61fa4658dc25046c92e1577adfcf845ca. 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/GBKQU2274042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fcc4bccbce0d82f9c947d196f8536456fff6af1e01c8f2fc02d6b6783c13f2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLCK42210452.
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 0x2f46a0fb0496f7b445c64ddc37c23187bc0189c830bd28796cb818bcb2d654ae. 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/GBKQU1884500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0b8cb038a14ae1f3cfe4c46cdf559ab901883e32e1e81bb9a36252c4325950. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GBAAP2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c3e86dccfdc4e917228e050d2dcb5ec728259d95104133d9d31a70402ac59b. 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/GBKQU2270400.