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 0xe0e06a658d77c1876d0197048a54cc86124b7517a7b7245978aaf8a2f0209449. 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/8be4e0a7-ba02-4346-a39c-e391da6e50b4.json and https://artists.proofprofile.net/proofs/artist/8be4e0a7-ba02-4346-a39c-e391da6e50b4.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 0x1a7c3fc2d0dc97b43dbb18a7fb8d07312f9ab2b7427e335d3659f9e8d366fe63. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/BCTOE2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c66144708b0ea2544bca3e68895ad7b0c5e8bf4ce5ff946711e424512833b7. 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/BCTOE2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358ed51f50d34bc1b0272e5b251340198fb49a1a48cd476527907e89023496. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:23:16Z), 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/BCTOE2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b20bf13c898e40283e693c21453ac8aa0274891c3c5f2cb185e0d227452b9ff. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/BCTOE2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc661225616afab21b6c4ff5b68e5505a9930aa35734de8a98889b590e24dd2c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BCTOE2300004.
Aprendi a Maltratar / Não Sou Perfeito / Amor Proibido / Tem Que Ser Agora - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181687d77cfd762d861b72fe6c8cb679c65cd0798a20a1c99d07d38e47d01739. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCTOE2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595dfa6eb7d4be8096beb8c379237b222c1b7deece733648455c2e5773547637. 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/BCTOE2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4de55144dd946adca9ed464d9815c59871707c123eacdd70c98fef049e15b41. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BCTOE2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4de55144dd946adca9ed464d9815c59871707c123eacdd70c98fef049e15b41. 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/BCTOE2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2526b6c33f9a831cc46cf4f792f58f33a3d4c0646a9a526de97d3059871d70. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BCTOE2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358ed51f50d34bc1b0272e5b251340198fb49a1a48cd476527907e89023496. 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/BCTOE2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e11b93f42fdad27b2a8d32dc6dc0ac01c32c045ce12a7d308fcf316ba2d3b6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BCTOE2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b20bf13c898e40283e693c21453ac8aa0274891c3c5f2cb185e0d227452b9ff. 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/BCTOE2300011.
Jogo de Desprezo / Amar Sem Ser Amado / Obsessão - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6ed42de5923e8621cf954c9d6484f3d5473f7a1874b9a8ed88474ddf6d87ed. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:00:46Z), 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/BCTOE2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2526b6c33f9a831cc46cf4f792f58f33a3d4c0646a9a526de97d3059871d70. 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/BCTOE2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc49e3ba9f88aacf9e7b1b7d0eb359c2e79ce4db79766b44d16fe4eac0c53443. 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/BCTOE2400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126e82d95380a17f3414f124f103f9aa4e228f53032ea60bf6d3e853e983057f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BCTOE2400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647cf8b970e226d0e63f30f0b586460d671b83e69145132e983360299336a28e. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/BCTOE2400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb9edf57c05157d1a7a40513cecf243b42b7d710a1dc1b97ba0804953d5b3d7. 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/BR3T82100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45dc80dbbfeaa1784c29801b6c77f999e6a66854ae603f002482e7eef09599f. 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/BX12K2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45dc80dbbfeaa1784c29801b6c77f999e6a66854ae603f002482e7eef09599f. 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/BX12K2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060176209ca75c90aa4907e19509dc3ea27bf1155ff7642a3f19b2af94638feb. 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/BRSME2200466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389d635481087cd29e44d16b6aae1cf47ae4a38abea66f74280379cbfe15df4b. 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/BRWMB2100963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dad88baa1621fc8410b811a2a464a043fe8b469816be688e4a1adf72c8a910. 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/BRSME2101251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dad88baa1621fc8410b811a2a464a043fe8b469816be688e4a1adf72c8a910. 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/BRSME2101251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152091106e078efc264478dce95d54eeb8163b951b1e6678adeb1287bdf6350c. 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/BCSY22300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0df7066770bb704f5254335e611071dc7236c75290ebbc5e652a4fa8eb06824. 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/BCSY22400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152091106e078efc264478dce95d54eeb8163b951b1e6678adeb1287bdf6350c. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/BCSY22300026.