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 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 0x680a622b78b8671de0ced9eb398c5b7f93ae9bcc73da6b18dd344293e515b28b. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3984607-8353-4aaf-a76b-abd3ca207ca2.json and https://artists.proofprofile.net/proofs/artist/f3984607-8353-4aaf-a76b-abd3ca207ca2.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 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 0xcada76fb2e43f5616bd035fe17318765865b750815b879bc7a7d705e019b53d3. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/USCGH2570527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1e064128075f67e5963150218e2a39e9fa020eafb048dc54650ea019e4fff7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDY42581622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc5ee0d24396e5500395e70cdc9a97f5261d3ce1f70aa3b51a7948f0f8a1eb1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USDY42581638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe8f773ac11cda03ad51a7e454fdcd4dce4bbb180094158cc744de4a188080d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324d0efab70d224639319cfe1a4561f78aa3e70882d6d4ce3a1d9b3141e54a28. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDY42581623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae98742f2e821a4c0ccb52346c7722e167388df3cefb3487dd87c4fffce9bf12. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDY42581624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175fa7fb619a8b7f25fc42e73d8fd5b9f69ecfe028a7bfe12bccc8fa5a76794b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDY42581640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3f008408e6da8c5a2a06b18ed60cea3b5f0cd809d7a485c7fd9268cc5f9d2f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/USDY42581625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdeb10a79a270b908712779d3cb1858bbe8513541990aa348f6baaceb59005b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d914bdf650e62dccca5fda37621264afa937c3ba026bd2d0ac278a4e9008d64. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7589da365eeb27180c4a34d0f33ff80c0dd83d4b18ff5b9665393abaabd79c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730bf1ba77fbc4f30bb572eb93c47acdbb042b2a4f6a5e1aa06f0866d098d134. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USDY42581643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51610e654591b856e9af779bcc05361c4b2bdf4e1fcb9a04334973957cee3cf3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff7b95412f47b7a6ada6f991ac2a73d85b47695ed85288bbf6365628e47c4fe. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9f240d4f14cafca8c3c60bd7234f9ecc3686cdd0443b7e2e1a0fb33ab7f47c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDY42581628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb7ea0b6a6b9b7c1fcaae0a161cf5eaf7d9ad0c0dc102c8fbbd6bad61007601. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/USDY42581629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070e37a43a252d69e0af9f1bce9db5082ba0031e1756c3179b5284c3879a83b6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDY42581645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ff8b4ab87c33ab24bfb09f05135538e4b8318fbb972e58f5970a01424a8949. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581630.
Mocho 6 (Guitar and Keyboard solos) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf76bb47a83c3adb7451e1e37871ee5bc7a294e258e7611dcc1c89525cae9a6a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b835f69641b9cedfa75a6075056fff0a924cef19c45d929a37ebaf91e8fc9f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USDY42581647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bc7a5dcb3612676f374c76bac506f0afe133935465e427313bec908ed701c3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDY42581631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf66e711fdff8fb890a91eb1634570974dc0580395886e1a6f19c7dcaf3e7c4d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USDY42581632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc5b55cc1dfee5de3d6ddac6fbe77b2bca8db572379f51c39039cee446c3d00. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USDY42581648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118fd6c93712a6a0c73437234d7d5f1cf72b965cd56656e999d0685d11000969. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/USDY42581633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33afa55f0fb5296369b0353668189a2441bc9228ba6054d028c54df728d33d36. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USDY42581649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa539d6ff985063550a126af2b7d1e7755c9871c6c8f912b443c37f5444aa09bb. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USDY42581650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef7941704d80c23a2abdd669010295752efa13b6ef602d70a659decaf770281. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b67cc4880decd7c8da7905ad6e58033aa7fe0462c7e14993baefd8034dda409. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USDY42581635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a26a8baf7d5b63f2d4af588bf51ba0731e109e5fca4284c9bd25b1630c8a7b9. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/USDY42581651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68985ddd844865442c3cf989307ca66b23888984755886e6b0369a2b73509d50. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY42581652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d7720b9ea77d59d49dc3b5d109dd5c2847b45bc3d2d4643221d8fab93961a4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe000807157a54394b80e1b7d2478c7566154742c9ed1afdb6e951cf570f1294e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42581637.