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 0xc870711bda2e11514327af6518977db73225d15a71cac8cbf950d4323a8f9fcb. 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/ae92a560-80b0-459e-b1b5-cb1790ab7a51.json and https://artists.proofprofile.net/proofs/artist/ae92a560-80b0-459e-b1b5-cb1790ab7a51.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 0xe265eb9c4d187bcfe7da78ff5969028b40953612df6c5592245a9b4287061180. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZES81836226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d626bedfb2181a8f8bbe97fae47c1dca4ef7988f15f1828adb2de7b4626c56. 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/QZFZ72117907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4a70553db7bd88427afb4f09ad2cd3e07a98311a1b0a76c477d011363c6a70. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZFYZ2090908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab1f8b15b7fe637c95c1f56da130a9d80da838de56cdf944d96c1d0021062e9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:11Z), 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/QZDA72058828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a619560834e42e17909e9dd90419d653f1512574b41b70fd6c9d48c387db39c. 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/QZES82016415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e28e8eed73448d26c9a3dcd9ded8b9c04037c3b98535e69b8a43e4f9fa8a41. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN92034121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a9ff996ee87e2606e8f41d07d49de5a864b012829f3e19d317e212a7e182d8. 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/QZHNC2049525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c571add27257d29ff9e43cde4c829b5dc7c573e51ad64ab952f51614779631b. 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/QZK6M2064127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca687fe06b08120b8a05361314d04bdee8e7b2607a3a7fc0a620935871a4758b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:41:58Z), 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/QZMEN2039544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b079cdb64f4aff6d06874493d309b0ed900a2dc3d0fc056c927bdb05a8874dd. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZMEQ2073653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7f3c4f42ff958d577cff9bdbbbd1a0d28b812ad24892abc0575956b688ce6c. 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/QZES91990909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdc503ec0206a3d46aaa6837863b493347c438096789430ae1c3f50604f6464. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWT2122820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6308735de61523296c03e239e21273d77488b4adbbe0bf0bd2db7f7429a4ea4c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:05:32Z), 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/QZK6G2171597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf416da6cadc5f2191c392f3528d57127a3cb2eb810122bad88bc9ec1d05f2984. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZFYX2188128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fcea79a683487f77bd0db1b6d99cd4c11fb2c63b716243bd6498fb898fa901. 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/QZFYY2250951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d35aef8561d05970e0c40b74fe64aad928b5bf08245bdad0b11cc1b809f906. 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/QZFYY2250952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a44cd8639ec59e2406a7f7db0318044d5c51cffd9e144dce6f0d3ecea758bf. 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/QZHN92218670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ce5930eeec72c18bebe12e5e75a8732b3de4e159d389506fe6e6cc5195dd7c. 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/QZK6N2298866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ce5930eeec72c18bebe12e5e75a8732b3de4e159d389506fe6e6cc5195dd7c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:20:52Z), 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/QZK6N2298866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb567d473402bfd831cf9c2ae1ef9b5f4e4facc175d01e351c955de2745f94ebb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZK6N2298867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada8f1641770df6b80ba76d961d0420b3eb5f30b7f1071a5f1e37191d9710db3. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:11:48Z), 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/QZPLR2297608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167d85942ab60a32f03af83a5ef13de2bb158ed5aac19cf00c5d72227fd8d1fb. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:31:44Z), 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/QZDA72389581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1da15b73f719864c6aca91c161cd973961a51ea153e1a467b0979240876e22. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZNWV2219332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a44cd8639ec59e2406a7f7db0318044d5c51cffd9e144dce6f0d3ecea758bf. 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/QZHN92218670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e3dcbf90c72b66e69bf2509a91c42ba2e5f009a6aee0dbdf5bc24a6b202fc0. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:00:53Z), 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/QZNWY2363259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd696ba11bceb8c8efd0db7b7240039615868340758c4a2dc1e20d1abbdc1d0c2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZTAU2268496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd0f18ec486368acbfbf3e70964f0556a6066064e85babb481f74c614a2c41a. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZK6G2239921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7018518b0a7c7aed817bf115021470e3ff5798fbe1019f81bef1fe966696228. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:31:00Z), 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/QZHN92218669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4dd544ca2ba0ddcbb29392c48a3067aa0e1b2e07757311b6cea5d99405c0a2. 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/QZK6N2298865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3535f4d40469bed7dc7d434644a311491c28c0c6f0a9788ba28cb9c84668beab. 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/QZMER2262614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0cfb1fc19a33f5324c8103c35bffeca81499adc8f7c036adf2b60439e45559. 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/QZFYZ2325163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e3dcbf90c72b66e69bf2509a91c42ba2e5f009a6aee0dbdf5bc24a6b202fc0. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:40:28Z), 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/QZNWY2363259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaba41b0ddd7f40b354328c40c046bc7657e7711c475adc93445a71fdcc44953. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:40:05Z), 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/QZFZ32475879.
Falling For You (Sped Up & Slowed Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca573597adbcecadb655d551623e9577733a255028fb5809d04754c63232d6b4. 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/TCAIF2403633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d3aea059ce39a2ee4531ac457be728f8845b8f800f8580efe2b9c7cfd67bce. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZTBC2493598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8d298012e1a3ebc87abf9e810af200264f73c6e1c14dfa73e5dbce5b35a760. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:21:24Z), 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/QZWFF2475752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f12f48e0cedbf944b05fc2cdce9f930d4c895b2471ed56a485e58eb42d25c4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:28:57Z), 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/QZNWU2510424.