1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1564577145ad19834c576c46a22b45f268cb21e6b3349f224a130d5682c5bb. 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/8357bf9b-ff9c-4835-a414-09f20980fade.json and https://artists.proofprofile.net/proofs/artist/8357bf9b-ff9c-4835-a414-09f20980fade.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8500af409caa02c653a604e8e57d56cf834c9a5df601689cb962a95e34ff413. 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/INS671500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaefde3b31403f732d6bbd3a6c567f039129ce7bf35b64269b0e61f5493b5fb. 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/INS671500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcbeeed254886636b87fc245d294c92e32083a614959c2e77f657b7bbba3c03. 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/INS671500576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dcc16fc34c424d1289a403db5c58661dd0428735fa9b5dd628256f31b9afc1. 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/INS671500522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2166682d9a4f0b6e406808a8c07647271916b45f57e46ae51998fa57c42214. 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/INS671500524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb0264f046cecb1b2ece9555452346de8b448b4f1156ef998bea37717ee1aec. 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/INS671500525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ba75a5943d365177beb607ccbab1fc62d8b287f94eb69c191d895fe05d2766. 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/INS671500526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0a3762a5e1e57bde3ae9bd0612518f562c79d277791101ab67b5a70fd519ef. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS671500528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c8fdc911b4b4abc67ae1cddd798313b71f85173b2f902fdb10fe54069e25c3. 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/INS671500529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c34cef69b883bca3088d82a4944298bcd301588b2473d2eb81afeff3f154168. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/INS671500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fba7bcb4a0517128c5ad6e94e5e61d7c737f733ffeacc3adf40b04b6c71984. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS671500531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf4e90c6259dbb6bdf1407b1ea109299f2d7d9db3fcf415558cf82e133a429b. 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/INS671500532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fdd4bb01bd7c396b76484c06cd87bde0672edd9a4898e199596b1e897b3764. 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/INS671500535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e7e3a90acc474a3f2c7b7c2fb4073826f96f0e615837605aab510a98974e91. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/INS671500536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f22de383b3794b3eee42af71446ac3b350b1d689e44d58861d6e73ebb23deb. 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/INS671500537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2746bd87997147b1b3dad29707e089b5fd9f43f0bffeb9987017923f3122d74. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS671500562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9609c751a20408472744f6e64f1cb55c27b803ad697b1fa92b295d3de60b42a5. 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/INS671500546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad7e5aeb7ebe020e63f72d80df0a5ca87ce21b7f1c9edb1721c30080b71fddd. 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/INS671500548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955c4af995e7ab70f5582c8c66731cee07045c3267afd234a632436b54cbc834. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS671500550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6936660e3bf8498adfff60527feaa2f4048061510bfd961808dbfd8074c10681. 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/INS671500551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd387e560fba81d693e8c0fcec28fd68492fdad66ad588fda4f684039a4d03c. 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/INS671500552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1723a3edce3ccfdb6191163e0ef4cbe663046fcfcaf5d67eae68db25f413ab53. 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/INS671500553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0876e228fb11aec8808198537ca88f456ff6a053d86fc6b1ca9886ffc911ea. 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/INS671500514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe227e16659b984dc24202a98a50aa21ba1daa9c5f3528a61eb52e333438fb168. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS671500516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5c0641667e50479a8ed1c6733e66602f4b30df793aea7dc91509de9a3cb8f6. 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/INS671500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8064074bcc41913f6b89b5f00a4280603598d8995d6065cf60f7e4f754d40db4. 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/INS671500518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead0dc2358b89284995cf62bb1bce6e63e4053c666c338f2dcde3b95931793ca. 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/INS671500519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ac8bfd72a90966a00b166ffa9baeb225b892b651cadc29e6c273ee9468ef30. 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/INS671500520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc499683fe6069cb20d8f3889021f7448b977f5b990774dca7cf8211dca7e255f. 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/INS671500582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8356ac01e1b353ae50981e6f60ee28838d549f1bf3d204915f692c3eea327209. 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/INS671500587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b576d91930cc8b619b7fa6722245baee74c8c97204d84febcccf2f3af80f4e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INS671500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2844f0b7632ac4d496976371faefe3beef4c91f27507da70f55adf216c21349c. 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/INS671500591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53b524714c49e52f98273607e5db8e42040c1b7aaf7cefa9681241b218669d4. 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/INS671500594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acad4c8bc7d5ca59504d38201a35ab7a7b96edef22b3ff62428b6167fbdaacf. 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/INS671500595.