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 0x54c14998478c679775dfcbea86339c7554b97aba135581093ab1ac44d95b08de. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18c0556b-abac-43cc-9d20-d689b8ca4f82.json and https://artists.proofprofile.net/proofs/artist/18c0556b-abac-43cc-9d20-d689b8ca4f82.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 0x0b5cf1fe8a3e8f68e5d90b58d7b25628d59f5e82ec343a901e49a5029bad1729. 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/ZZOPM2105519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3260a017dc70a3375ba470693b562726bda9fd66e9e9c452c153bbde0fc2028f. 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/ZZOPM2105520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f02493510f514d101d226f068cb319252d0ee3a62ab0e64c81bf1e77828bf5. 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/ZZOPM2104752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb803c8e670d8a356419e5c5488d0eb64b0c208bd0046fe2a9650bfdd98f838. 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/ZZOPM2105530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22edf982db87ac8858808ce6d8bdf22805734570399bb1ffe8ca52e862d2e471. 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/ZZOPM2105531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa9424d7c4e9b289dda09e8c7eea6ea9713ef2ef75adbbfce7c95cc753a59cc. 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/ZZOPM2004022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400d9121a66dcf774d7df0f78c578e48e066659552f3f1208a35a162365f7a61. 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/ZZOPM2105522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867bb8571163318b2a9cde91075aac2e2ee0715014ee6573b2d1f67ac3ac78f3. 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/ZZOPM2105523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcc3b6ba515aa38d311c91b56067f350a99144729d8862cc5730071cf70dc7e. 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/ZZOPM2105524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc06f7d48ae48724048c0fedae203cc6e26e4da7cf8d9bf4e6548459485fd06. 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/ZZOPM2105528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ffdcce78fd54366136a854a655a5c576f066b2cb5966a5253f61a48db449e1. 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/ZZOPM2104257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9325afc5d39069c070d221783ca7c94adeb675b9352f343f8c6438fa9644a3. 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/ZZOPM2105527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1a1e2d69a2172c21cbb5d3f9b737c6851fc1ad0f54c946448706e64537951c. 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/ZZOPM2105526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd991c8de280f1ec9969d67d6efbbcb3d5c2fde76cd45f9a6c56a88df7d2e61a2. 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/ZZOPM2105529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78120ab46126b03d915e6fab492570e09d0b2244c942ecc4041f345e8444e0fe. 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/ZZOPM2105525.
Cuando Los Acéfalos Predominan (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0df47683099db7630fb5c95900589e43db0a5c04279cae6b13c2117d4deea1. 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/ZZOPM2118991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2094732dd7e468264bca587a7e27cdda558e00404630f69e87637fd5aa650a3b. 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/ZZOPM2118992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2d3cf19d48869c2df9f26aa34d067ea5f4a92665afb12675d1e1edde31f1a1. 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/ZZOPM2118993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a08a5733f6802ef7a443c8710cd19cf6cbf23539326ee97524705bd8f1ed6a9. 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/ZZOPM2118994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4848ab366e6ebabf9fb1510abc28e6c4eef4c0f8e066873b368dcf944e2c3153. 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/ZZOPM2118995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ff80f8ad6d24295db3ce9fda11834cc8940325154ad8a70603f67822ffa6af. 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/ZZOPM2118996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bb2dcefd1149834f63ea7a6b6fc78420b3fb5944d583b276eac23a2986bf6e. 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/ZZOPM2118997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945fc7b03a7db95d8ba015101041a35095819fee0d3cb2198f2040934786a12b. 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/ZZOPM2119002.
El Avión de Lenin Pérez-Bernal - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21882063fd9a0a92d202b2a78387766f624d23676c67e593f41faf9a4d7e7a44. 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/ZZOPM2119003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad2c9a7df8aef3f6b60105cc4136959cf085a43662fed76c379aef75cb6d8a6. 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/ZZOPM2119004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a387436309493490fb705115f99e1f981c47f34fd42bd8446deed8d5761f907. 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/ZZOPM2119005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0db63f882a065b2cbd759f9ee11c907afebac5c5333f9418490da64b4269915. 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/ZZOPM2119006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d0bead59bf8010d009f301e3fcfcaad5358deb84a0ea3aa68dfa30aeb54528. 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/ZZOPM2119008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f232e5a6b87d27707438c164edd09d258fb48b2c7f29749f0ee0e101a89891. 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/ZZOPM2119009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4372980ed01925ce1e7a6b19086b0420fc3911776f3d5170d9d01cca9005bcc. 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/QM3JE2001641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6bd3024ee422b0f5c8a37bc068aea85aac1ca0299b48fdac124b0a999cdd22. 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/QM3JE2001643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efe64e34a1c81163b7e7376aca2dce660219d12495bfb4b36a99f6ddf4ea1ec. 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/QM3JE2001645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dae3597df37509adfcd16b41bdc3d9928df8e83b795e28f86807d2ebd381263. 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/QM3JE2001648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15263c4c24ee793d1664db77394ef373682aae3b9182eda9ffeabbb58106f4f1. 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/QM3JE2302351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65630f4e1c1e373c0d3b1f8e7590de847eba622735729292f86a61cc40142139. 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/QM3JE2302355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d10b9bb4af5e28f13a90ad2775f803f8c2d9b08a63bdcba87a2d503912af9c. 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/USCGH2455162.
Smoke and Mirrors (feat. Ari Hoenig,Tal Cohen and Sam Anning)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb82d810f6bc4dc12a93d103f7397db17ca1456a6accf681d2377b4e41087f0c. 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/QZTRX2390930.