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 0x76d963ad3642c585735bd77235b367b851c4bf82426722dac02604f83460c0b0. 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/a290abdf-ba63-4a5c-a02d-2a386cb2de53.json and https://artists.proofprofile.net/proofs/artist/a290abdf-ba63-4a5c-a02d-2a386cb2de53.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 0xaad2bf9065191683be67c3f7e1e7649c0de0746c4f07e167c90fd226116a86a7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:11:43Z), 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/FIZGN9800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d98f855a40e5ecd1211ad62cc72806798b42a4f260aaf16820f0092234589ef. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FIZGN9800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8368499a61d0b846f2a8eea91d7c0e4a21acc742ad5b4b10e8e773441e3b285a. 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/FIZGN9800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c53bb4152cb3691b1a0b811805233bc0fe0b67f3c1620c5f63458ee4916af. 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/FIZGN9800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5434fb91c0e17574f8e7f61c35280f72ac74a919ecb81c11344ce8d69d63744. 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/FIZGN9800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272bc1b40d8a95e236568438789bba99bd0f841adef1afabec6623e66d5396d7. 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/FIZGN9800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d296cf67b5a965c8660983d7a88ce04ddf97c251e5e898e98e6bdb98d4d3d4. 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/FIZGN9800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0a3b5474287adb6cdf9cbe188b637e6fad84206bdb2ff46c37a8b733788fa7. 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/FIZGN9800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ded267ca527f1c3a30a595d010fbc55ac6ddbdf1047535dfe6652868c113cc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FIZGN9800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5624f879a7817bc302bddf84a6d807ae1a3fed58b6ae27ba76b2eedd8beb2e84. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FIZGN9800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266432b392e8cf5e4441dce6f586eefbe69e9cadd948d37f06b98aed924cfd41. 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/FIZGN9800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696365a8ea6df23ba38e3511dad2ed5d6e3384b5f11985b09c2e3c763ad8549a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/FIZGN9800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68314c54c986a11f562e34afc0c36e7f26be2f0e34db557b420c2201830f6d14. 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/FIZGN9800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ed85fa1cddfa633a401050f610e676d49109c891d96616d61d009bc2876019. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIZGN9800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08cc24e37126dba8dad1305127dc026accc25ec7a47725c6aa7cb58e3a02a31. 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/FIZGN9800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b27f38169658efabe3ba6813ea36d65a391f21c996f4001e82db1b38bdfa042. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIZGN9800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21348e12aaac6f1d283fcf9344bff7000c4ca72b04eecf56fcf845692c04eaf9. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/FIZGN9800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1323ef74f069a798f888d0d01f19a0441b482021c5228c114dcceca1b6d2c67. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FIZGN9800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e31d8ea222d2467926cdd503d876a0ff7189cb01067405d159891ec0ed8b86. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIZGN9800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1323ef74f069a798f888d0d01f19a0441b482021c5228c114dcceca1b6d2c67. 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/FIZGN9800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274ce7cdbfa54b21d75a796b3d520767a5a3aa76982d6120eb637e6ce46a5e17. 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/FIZGN9800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9038713bc0715c222f6ba6af3004b13b127b2c56bf4139b66f3fae9f114568ff. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:34:48Z), 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/FIZGN9800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7d76fbc2f6fd34bdae43e4b65d61b33591e2eb32d5c04c9e93bbb21ad8e9ed. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:04:08Z), 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/FIZGN9800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64677003ae0243921e10145bb72856b1adab14598e419364d07790cbcf1ed608. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/FIZGN9800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfc8c3465ade86c991e0d73f13e2cbac08f49cfad475378d3643d01f7288295. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIZGN9800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba53344511d936e5aed67ce2719173da5a1958cc22a9e41ceeaaa4682f167407. 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/FIZGN9800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818174cebe3cc0dd7c7bc64ef0c4319060ae6a80ad88f2abf39dcf91e22e7e9b. 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/FIZGN9800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1122b358b0662a8dae603924eadb3f734b9bc0eef390c32012bf7273b314197. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIZGN9800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962614c009545d4840bbd118211df994d492fffdf9f5e4aa858c18b20ba71a8c. 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/FIZGN9800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804474f362e2a0d2b6e6f6074a0f405f161b740363ae214e213e86fe7ff80274. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FIZGN9800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af507c18dd2034995fe78d843929d4048ede71b6d3380c7e536521b5dd670bc. 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/FIZGN9800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9a5ebb3addbd84ed617573a27108163e2861413d3265c235804b83a31eba16. 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/FIWMA2300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5011cf44624eda8d6b9a8d48834a795c16686e01d20962931d34f065f74db3. 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/FIWMA2300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a07041072d1e3c76406111677bd312a202430205a1e70fa6859da3946bdda7a. 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/FIWMA2300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cc0e5bc3fc6f3bf601fcbd0e075f90d846a97eefcbc136a9cb4fae4be5c441. 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/FIWMA2300271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7db2836c9a49b1153145608a64a9fb8637005df0123c40c78e081503e41e5b7. 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/FIWMA2300272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebea230c082eb578d5d4c5214082ae73ba6785c0a5e8ed2273ddf342d1c58fd8. 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/FIWMA2300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf441052617c73e5085f82009d6589c8b6d3d7b9096c5913dfe4fcdb9f86873ac. 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/FIWMA2300642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fc3aa5f8eb7b8589a1895d7cc76d07ca5f05f0349a8dc492ff211f08e56f01. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIWMA2300643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21261911de08f0e1e24c8400cab7e50a38d458a02a16d721e44995ca8e5e76bd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FIWMA2300644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fb60c89d1bc7bff7d626e0d77b8c77b418abdfaac232a228ab94a4cec09ae4. 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/FIWMA2300646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67f316b5f45bd73abdfc6038f09b8f450c9442f6f35393097104e2259a47e16. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/FIWMA2300647.