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 0xf28e713962e25a8de823218c14fc223013a81164c460364772c1d9e58dcd0044. 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/f515ad3a-b936-4d20-8728-93cbc60390c1.json and https://artists.proofprofile.net/proofs/artist/f515ad3a-b936-4d20-8728-93cbc60390c1.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 0x2058240cb9d73b82a6fc6818f1e1f0ee6e1ada17f612160ed240209234f1cbab. 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/DEZC62376498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59fdc19d620ed174bf2abbc5aaef713e7f6a6ceb2091c15f86d5aee84739b1d. 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/DEZC62376502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ddb60786891dc2d056d91d3b555ed70811014799012e3908f66c0cb4e2154b. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEZC62383939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64e385f8aa0b082ad77c095aad78305003eff5e4b5c487390fdd296b38a0126. 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/DEZC62383940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf639b2c1fcd5b98a6d5732bb05e5d7eb428e3efe54593e3b1c77bba87d22bc41. 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/DEZC62383942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122d5de2bcad67f6db28f6a4df044ac126a63f76c882fa2d1d925a1ec48c183d. 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/DEZC62383944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d38ce28bb9f86b649fcafbf7cc79a8ab0cd45d67a2ca8b8251df369e8476a50. 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/DEZC62383948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900aa4a12465f801fa39abdbdfc418cf7d865990c9832deecd1a4fdb5fcd89c1. 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/DEZC62384514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918696c5b90b93b8451d2935ff4b4a093f88a32f526370ba8fa0c3c8074b8ff3. 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/DEZC62384492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4dd1a45fb6dce0cf0908cbbd034ed7697cae945c1a703b1a0ba5a655ba265c. 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/DEZC62384495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7136a2c72fe823d48f41592a9df0fca047e329f92d7713a89c5f948bfb17c00a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:18:15Z), 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/DEZC62384498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9337b9346f95690ae857326acd863f06019239ea83b13efb9d5328c4f813cde6. 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/DEZC62384499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1f3c29ab5b931256e8119ab1308d27d63ebdcd206481425a4858146ab86d81. 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/DEZC62384503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923cf7c298b8aa69e87a1de8b656e8799871615f2baa549ddb2c5b891e624129. 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/DEZC62384504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8ce16a310d45bfcd5b0c557660e91a5eefaef1f104535154c58f5d916e9bca. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZC62384327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2eb5658c5036bb2de31d0a7cc277a6067c2fe4c50f7c4e058507f9c2c6d9659. 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/DEZC62384328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eeb7b25222ef4d6cb6e750aa6567bd53357e11985550d85f99132423cd2791. 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/DEZC62407482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62153e87f0cb15a5ac136f7aa7e69ec22db2d327f27939a40be9b294055a1189. 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/DEZC62407483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123658485182d9b5fe3109aa515fd0abb0a495e417de340ce9b734216acf79db. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:43:42Z), 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/DEZC62407487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fadc025323ccdcdfd09d90ec1a5d81fdd831b1e1f9563c782b55281a688300. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZC62407488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24923007bcd2061880fd49c2960d18dd358aa2224d488406063225fd05220b56. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DEZC62407490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b613875d53936ca1a0298f5c8408b621fb9a994e2b924c429a69c2f320013. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/DEZC62407491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c4311fc41076c6157174b35f934be1f74ce5f6a7db0840a50d14671ed2cbff. 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/DEZC62407492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a4b69f0a061a96c540c761314bdf66f451ec4617f6944477c9ed11cc058f7d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:15Z), 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/DEZC62407531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3778bdae555c33d2090d69646567955d9d39afa7e6c9f311fd73132a1d970a23. 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/DEZC62407532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ddac52f76b7fe2d905b2a2a64becf936211eba04705b9bab0fd56ffaa912f7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEZC62407537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617aa2ba6cdf428b9abb6fb4e87a64fcef0d2946c63b7abc632f7f24da9dd0ff. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DEZC62407538.