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 0x9fc2180403511e1bf2d5205acad5ff81ddfde71e74527f4d56135b7bc97845a4. 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/f49e7259-26c5-4db9-ae01-7a5bad4ccc5f.json and https://artists.proofprofile.net/proofs/artist/f49e7259-26c5-4db9-ae01-7a5bad4ccc5f.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 0x477c06f1beab112d1df04ce65a36773a0da9c080e3d57e6d3221e82645306889. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA531700411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abfcd6e62b698023b47161f8d581cfc1bf3f2ea2313ff0cec6ad1266c18b41a. 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/KRA531700412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e380bcbd0a5a38663a84e8e80fc3377125c5b7b6050aecc67d463c275b86a50. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/KRA531700416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8bbdab27694dd52f1bac9c4874d382f8a03c7df7e47ea97580783f05b5790d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:46:44Z), 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/KRA531700418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa998a4929fce9356c2c70a7bc3b945c525afdc244509de5a408c2ba209c0f9f2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA531700419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a77307f325655fb72b60cc9b06a13ec69ae7f9d32fe0033127147acf6487dc. 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/KRE391900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda95cfd553f627c1d3c8c1604567267c820c2c2be1f763d93adb1ad74fdd38b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:23:45Z), 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/KRE391900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea466632b18749eb35430e26d27b372290635fbd933edf81408fd4a29df3348. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/KRE391900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52355633186102b71fc7e9cb51e3e956363098a6d837d8d3aa58b7859a3213ae. 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/KRE391900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efa3de5dbd00a6438da9be33d304ba62290ae359de74a1bda3c4a26010f01f0. 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/KRE391900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d45a3a0ec3cac4fd849c12a7df595a9c47e200238f832835a0370114d1b6050. 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/KRE391900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edf36a54db474542e194f1bf746d334bfe84a7ddb5d2cc99a959a06cbf782ce. 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/KRE391900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938b7f5ed5bd807a3e163cd578ce04b51715036f3323f4fabf30d632a978c26. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:08:01Z), 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/KRE391900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4a4cf440700b74d473a86e5d3aa1eb11d8fc7a7c7c3ea87fb715e60a128492. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/KRMIM2018326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15792d1d23802379291ff40a4aff8dd9fa57e04d886bc382f33f9d6b4fb25590. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRMIM2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aaf982cdff9d7330712c5049e23d40401b3572379b9115f4b871d90b53a7c24. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRMIM2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186b90d53b0229e3df9695ccd76918273b46efeacf65d00abdf94675f1e482ef. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/KRMIM2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861e88ceb0bb5e03f6224e2ada532a960566ce809a86bcbd2179b3fb7b1895ee. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRMIM2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb01dd8bc7d2396805de0a40f7558c2ff81df4be5f495cab8bec43440ba0a2b. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/KRMIM2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7473b2eb5f8d01dccc01f3d78dc62b14f1e84ac71f22b7b6e8ff88f51a110cc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KRMIM2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400266337b27647f72164bf44fed449e029cf7aff41bed37dc2b0c4ed14669ea. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2365797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b2f8c46b00456b9eb6f3e3f9387b899f1fb8e953ce39dab843fcfbd398fa0a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:46:44Z), 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/KRMIM2365799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e3809e24aed5e5fae4dd5cbf7b55027901698ca5b5b59472b948303fcd6d4d. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRMIM2365800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09301669f31aa1191e6ed8f7124293f3881b43f76ada7e073e8c5970aade791. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/KRMIM2440041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cac402451ca4d274978c0c0c9a315b38100e071b0332d1f4db0d6afaf55f606. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KRMIM2489283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5eaef28b953626c3b6026dbf49852d0e5ddcc6890d671abba0cbf3ff3c5a7d. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:04:07Z), 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/KRMIM2489284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52438684b11e06183fb73844eb7a3dac09f8678fbc0b4bf07669ff4213f6ffc5. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRMIM2489288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aa2c95443399faf4ec5c74b004e15df057a3888c0e9c70cd5b15c6e6af77e4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/KRMIM2489289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a49d22a8d1c44e55eec11bef58b773721a041490075fd44bcd74c22e41db9f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRMIM2489291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4262b09b554b81302136a7186f591379688b0cd3f2091e1b82234970324420. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/KRMIM2489292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429931940cbca13f5b126764afc74000659a5d495b2464c3f85a1280d342e867. 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/KRMIM2489295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2402678a46205b2a96c9503bedd3a4fd7b435ee3b431c29f87a2788f4fab2455. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:09Z), 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/KRMIM2489296.