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 0x908125d6dfc5a4e7b063e1c826567f55169531f7aac66e17cedac82de2b34816. 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/252b245c-f273-45d6-8827-29d9ed9d921d.json and https://artists.proofprofile.net/proofs/artist/252b245c-f273-45d6-8827-29d9ed9d921d.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 0x8828cf31b2f8dc569c222f4c3ab4cea772eed4e9e499cd1f3006e1192c8ae2fb. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/CAGOO1980395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecfb30a99c42d9cb913d3d3fb0f9785b8053b69295d8a28211e9fe8db583823. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:16:21Z), 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/CALVP1935203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e9010e2cd0198583556ff52f7f67624d42e11052e3821e600c05dee8148e9c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CALVP2028596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe45a2f135b38cd8ae1d8f349e40118250a4458a4b721d60558c8b6496db552. 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/CALVP2042896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21782a6cae0d5638babfc0a941c95439f76a3fc7448f3b6a8c20e7c56220a92. 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/DELJ82099573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960cffa122b8f1c01f38188b187abb01f8e39e9180cc04190fd8bf2a10f89bc3. 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/CACWV2003735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31556bc09005e90238a57315af55b306f1e5b7dc97dcb4937d857209d9542fd. 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/DEE862001901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eed15614eb074c8e30e2a5e323e523b50184f5f9c0e39791a0095d582db94cf. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/DEE862001647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c232ff177a88d1c863f19274339144a2929f3c36e147105eda77ebac4719b6. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:05:57Z), 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/DEE862001902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77307704ca835a38919476c0a29497e1774e1b3c69a9b552d289293b66f88162. 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/DEE862001904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e86781eb62225805b32285401445c8dd794839bc5857b4cd7b7a3e0c1d8cf2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEE862002557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b19116c9fed36441ff6dadc92ebbff16a7a7346533d391d605454f7545cc6ad. 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/DEE862002756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b8dd7970477a50f22bec937eaecd107a5dc661df566effc1c6e23180bf9b32. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/DEE862002881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeedb17b8705680b8f1c576b31d5cd8f7053a3261e812863f44d29d3d9f95cd7. 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/DEE862002882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6388651f14474dcfb5480d76a6c61751147300fa13df4c22973a75b10348f9ca. 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/DEE862002883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc295833b48dfd3904a48702952f394833ef18c3f5b3457afacad334d1c1acb56. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:56:52Z), 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/DEE862002884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6447d5b14683e8cee7b45d3367a58eb2e6b9cf93fd6a7b48ff24ad64885c62. 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/DEE862002885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b19116c9fed36441ff6dadc92ebbff16a7a7346533d391d605454f7545cc6ad. 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/DEE862002756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1ce47e7035f4d04ccb7f2fd70642c640b3706ec17c2c1f7c8e21c6dd04f975. 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/DEE862002886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a961f20e24d53be784ab54bd13d6f5c59f9551a0353ff13c60b8a86cd758ea. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEE862002887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1028bb4d29058e5f629ca81beaf0d8fe18d313dd351d64869eaf0ad130fefa2. 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/DEE862002888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86377f599044376e734e38c7ae1d62b550bd845a20058869af812f41eb3006e. 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/DEE862002889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12f495184ff6d5a9f52fa3cbd3cd2ff0ed14ddd42e37764d3638baadb7cf7d4. 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/DEE862002892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe861f0e9671c426627f9eb4d28885ac73da8792a7c82d6f0df843a5c9e9fbb. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEKF22100431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9283e8b1e8be126f63f2649bee3a2af6cb66e63e746a38b12809d51a4eb9b4b0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:47:12Z), 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/DEKF22100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4851ca11a3393e6c6ca24e99517b99a8e7a0737b437d95de0c377beeadfecad4. 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/DEKF22100429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f435536a4e8ec697eb6ff208f251a60ba8a891e31436bbd9ee1c14f571e83c2. 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/DEKF22100434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee847a9e1defdb871a8d30e145c7880aea9a426d3a5e67e9f0f473b226bfffd5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:04:06Z), 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/DEKF22100435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc0c95aa88a2dd7e4374128f4c814b8f45d3d081092b9f2b881e41e33f7799f. 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/DEKF22100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cef081b2a1dc79521ae5c27a79ca65804f305dd24679e4cbd81434e7052135. 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/DEKF22100437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b4506673bfbaa7f8938a7ee5f3d3077e73acee3c3c99f3505a89c4135a8b9a. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DEKF22101234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb91e828e53f0df7f429fbf361ee154566d75cc4923a1206e356f8b571b208e. 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/DEKF22200589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7630e3c7fa362ddc7d9508d9906849a934d59b9696d7f12dbb4e8d32a8784af. 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/DEKF22200591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d8e4bf3cc1d69e14765843850858adb001066b5e0b27fb6ab9cb8beb24f888. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEKF22200592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b395fd09073bdf75e1ca6e1b6f3ae81fd107f6043d3c3440a9165e55254399. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEKF22200593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012e41878fc05bad7a844bcff250f95f505bf2d6c75c1c41d48fd55fc9d30ebc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEKF22201037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce34bcb6558f0d935ff5cdd26d76a3d826b55965feed7a62e2dd499bb951303. 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/DEKF22201230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8790f2c829a395c117a80c837b03fdd67629f5c36adc3a8cf5cf5a1c1a59a68c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEKF22201304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150f3ce58d195fc22fc1d4f93603eb2882d4f9292f70aef0cfd88534ffb485bb. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:09:20Z), 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/DEKF22301612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef51c9d8b1c3a84be6fe8e4f0e9fd82e05c43c2b837417853769df086c04b346. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEKF22400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7c3d7125e3832769743add08fec3330f3ba8a876b8fbf2eecf1a3fff81c0ad. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEKF22400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12815479e0fd1db25840f45ec614d826641a6ff9c3f7b3a9ee6604a95ac37864. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEKF22301613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150f3ce58d195fc22fc1d4f93603eb2882d4f9292f70aef0cfd88534ffb485bb. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:06:52Z), 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/DEKF22301612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb267946eb5c025d0547a085cefb493b9d50aa67b431685ed154b1e74953824. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/DEKF22400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf449298bd53f3495108c40f43993ebbf81b46404d6666b687d3cd8933775d81c. 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/DEKF22400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0169918cf369bdd6b2c6dce93be1768898dd2a9def331e6d2debea29a66a832a. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/DEKF22400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fadcaaeda17d59c73aec1711e48e7aae1b10e8db2023dfd7c633bef5f600185. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEKF22400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98500e6ecfe388a993498b915645f5a76d2280e887902c62b45e6c3a95f3275e. 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/DEKF22400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a62d3e82ae0f232416ef6f2b79e8ada9a39f7fd6ee2721234a52d8fda831912. 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/DEKF22400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc76c6294fb5bb06accb85166368c9f041b270bbc3720cf0f7b635687b88ac38. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEZC62452775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc1f27814a1b7a4ff541065c920fa3810da51ac80ab2c56e9d5ec059aef9765. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:05:11Z), 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/DEZC62456448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3254b316fa1b861208941b8de331404021f11c8f5eb5dc1966b8291a78a7f7. 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/DEZC62464350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b616d30c01af3fce0d9a6b8198898b7a8028985b6e7ba12edffbdb221ffc06. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEZC62464351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea6cdc87e45d416ab5b509eb722513fdfe5a749f93102fc108f8caa28081b52. 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/DEZC62464352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3352ea6ecb727250969cc963aa362831b3b77377f2178f259e199905ba3a29b. 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/DEZC62464353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ed400ace0f01f66168748247f5fab647f3e5e3e730161097e9b45711f4330a. 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/DEZC62464354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a91e5b29b3c9485b5618b2c4dc7071ea92213aa400f1a840f5202e61685ffde. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEZC62464355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1341d4356114eacc13861b485ac8b369d09d34d668d4d4eb9bbf771fa4cc38b6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEZC62464356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d38ce7a3153515b75e636ea1b69b88ff92781eb0aa7b15ca2465b86e0d01692. 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/DEKF22100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571c11841422a615e21747be1aac1a4124d90c598ca87819a78dd1c7b8855a80. 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/DEQ022009931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3c5188c40aba4d302fbf331cda98489dacff7456b6a1d746bca92314c66368. 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/FR10S2170095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efad82f7178821b3968a6e7feb8b9e43e5504a08764ed73a9e144371b3eeb7d. 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/DEZC62009072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606583a9242202aab9a01ea073f46ba9cfac600c0f89b2652c62b767da013b05. 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/DELJ81948247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c27625bed041389462690e0a5527e6ae31499184424f23933ed879113005f. 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/DELJ81825000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032aac87aa4fed79357e96aadafb0ee9640c55167f685f85d66311fe48f01a96. 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/DEQ022101899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380be1ef0159bd2e57a5c03d5be509a0e648e5e3444faed2b695e66d684d4b28. 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/DECE72000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf508ca383d3e2d7cce0dcf78fc9cca52ec81d8d40363469ea0696a71e69446a. 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/DECE72000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3fcbb385f02b477692b5d1b2423d5216e93cdaf8cf92b1c973487cc1d56999. 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/DECE72000318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6116051c089112c019c3c48b71a465f582b52c0e94ae04e366d2851b3b9f1ead. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DGA062068076.
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 0xe4a756eac77555814b76716ae972bc2bf382c5c5ea6ca1a731958b8808c70906. 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/DEZC62189079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278a8d1d8aec2f550bc9f2781d9a74eba60ca3d544d25222e1b81150bc105f16. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEZC62292698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f73451644ec70eadb702b0a982e5d9d2a125bbce9f47a23a725ef1f0403c3c3. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/DEZC62292699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856e7d7a85efeed7310f46ebfbac0ba614baf006d986844cb7af119b4ebcc0aa. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEZC62100331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9629d2a64095c01aed943d74537d10662c59bfd96f5710354b20a94ff5ff93. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEZC62100332.