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 0xbe26e5e238396d3e227e103cfad08fd33f2dcbe25e467eae02742c3b21303e7a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35560266-c19e-4f7d-9ff3-3ed05162d5af.json and https://artists.proofprofile.net/proofs/artist/35560266-c19e-4f7d-9ff3-3ed05162d5af.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 0x0eb0da0d350aa1c391b0ccff51a8d934a5f553e4918e71787cea271e6a51d92f. 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/US25X1081998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe196b16feb8788b1a837a680f99021e4319c815bc362f1a1f86531aa14579edc. 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/US25X1081999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982fecdc3c14c3b3babf43fda4243dc9e77c51b45e109741126e8c5ef57a804f. 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/US25X1082000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef95d0471e8f3b57e259512ce102418ca910873318bc09fbafca82d363bc77c. 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/US25X1082001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8086321e8ed870cc9a39a91995dde8730f0f52e00e5fedf8fc5dbf36c2682797. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US25X1082003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f3ed6db0f1bd72f091f281aa2a68fb5999b9d46b7c818e4433e58bd071be8e. 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/US25X1082005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2579fae5e3c0ed85ea535dd5c123fa0ff052592e8c89bf2bc1a929654d5a25f. 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/US25X1082007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcf97fbaaa79d37db9c0260c7eb899058c3683dd5e7426674f16509e3f94041. 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/US25X1082010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2988eedd7226196e55dd8ec1de298e2194fae2fa489c6a60914041959be0bd4a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:31:50Z), 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/US6881100395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de2e50dfe06b95e29596cb0f4e9701343de3299595f15263c0de4ccd6dd6ed7. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:52:14Z), 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/US6881100397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea1d10ecae1844d5e7932fc029f6eb1abf04ab0c3b3329f5060834edadeeedf. 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/US6881100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c00ca1796d479aa96973f3050e490c15a1419ec3c3799070598588d27a22497. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US6881100399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafccd5d18f66f733b1d43b06690351f2ad3a9da6cf1ea00317296936baaf15c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:00:44Z), 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/US6881100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee26c1faccd3e30351221a161f90cc2edb049136c1e192249c0b40d943274d0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US6881100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db2e65ab98c4bc229afbc7f2792e708572f2037c40da70bca122c03ef573284. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:09:26Z), 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/US6881100407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8535178ad5c46a97cc7ce97f152f5615b861d0ec3943608a7a930d340032cb8. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US6881100412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4caac3e62a022e6876012f5f56d25b4aeefe7ee7136507c9c348714f890fc3. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QMFME1470238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b4dd73a24c507804bb83ef4ba7cdf1109254f1609810ceb9a4405902208a2b. 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/QMFME1470239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f5fa5352450d4283aba811fdbd6a7a118f7720981299a9228cd83c497e5519. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMFME1470241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e4bfb18e968c231e567f945169c54839dac90aa0fabafb4bd0e2bfc4a896b5. 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/QMFME1470243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a09f6c0e1ce78d4be69c3cd3dc4b4a528405a448788d0ab759f4e1ed6380ade. 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/QMFME1470248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaf22cfa583c4f0ccea6290f0f3d1e182b45c5ae142546973bd02809dbcd7a4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QMFME1470257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f9e5271ffc3799c34b6492f4ad8ef9735f8a8f3e5ecda486585f73c24829c5. 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/US6680913583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c17a53b07590fedf0c29217630ae7abf8bd46bf61f8016756bfeb39502a25f6. 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/US6680913585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d4790152f26c1abfb246e3e9150fc9d6d9c639931ec1ddf98283a3b1d1824b. 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/US6680913586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baa1efbb600614d379fce102b37c44fe3dfc8a28533d9635c708c18e7811411. 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/US6680913587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee48d3373067b919540c0f7b1603628683e9e99da78998c15af5c48b8a43ff4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US6680913588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9984055317c5fd65c7fa14f22545bbf7782ad94f4b99850d2e2d982cff3ede. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/US6680913589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55e655a31607cd8a1432f829dcc6b7f8b978113fb68d18365968ffa74bc58f5. 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/US6680913590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebe2bea41f91848232914f89ede596095486e0904e03a51fe15703286e3a784. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US6680913591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02052b9605296019901a7aaa278c4a7e1930aa04323b667bb58ea1475a7dedd9. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:22:37Z), 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/US6680913593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f76d73c0d47da160801542dd47ec5d304e98b120ca801f79491d05948645aeb. 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/US6680913594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca176f8d960f435f6f3e558753fcd3a1ae70feba9c60334d42113a9a4c4d6624. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/US6680916005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c99446e0fc413d32a8b51ff1cd149faff049e2c1eedc2346c4be159701126ba. 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/US6680916009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e79e03a234e88a4fcd74f123c2cff8afe820a19e122123379cb82539827ba. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:28:15Z), 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/US6680916014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf30fbd5122ddde540dba422670cf2b1f3f4952fef3b759d878d9569ed761da. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:58:42Z), 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/US6680916015.
Kutmah Presents Worldwide Family, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be41cbc5a98262d72659fbf7395930417fb21fe10620176ee7d1f3f195ba41d. 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/GBMEF1200459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82056991ade4ebf77e9cbf2629bb1cdfc8c6bdc96851876f7af6e5734ef5a6c. 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/TCACZ1764834.