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 0x4781b72a84ce576c0ff158c60c85f23b39d970a7c7a5c5327001f1c1a6923410. 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/decbae39-3feb-4841-8df2-aeefdd94cc3b.json and https://artists.proofprofile.net/proofs/artist/decbae39-3feb-4841-8df2-aeefdd94cc3b.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 0x410beaf67abce80797c63bfe230963974761d0182aa851b56912e096838e4270. 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/USMH92342942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d750c513e58664d89cd068100c69b16ebc53d33ac99f49bd8ddc1a0bfb82383. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USMH92342947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bfd9eee7a1ace1c2cd5c33b1960ce7606f53d4a277567a724d9d288538d6a6. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:39:36Z), 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/USMH92342949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ee1efcc21cd7f43b7c74334489f65b79d9f6bd9857f91127096f278c29eaf2. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:36:16Z), 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/USMH92342952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e699e4b47e76284ba0082551ac2bb31ae7af24e217945906ae25c08bc06c869. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/TCAHR2342749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5800362b529cb04a1f0aa37d4e7a1fd50a7a4b1f4931c77d9f2ffe53ed41b7a. 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/TCAHR2342753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3353da91203c1d3ffab0805f1428a27ee9cc74717409d770c9122849e518ef19. 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/TCAHR2342756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c13dd296b352d14a0df1a1db6e02109cb5a2daba34cd3d9e031db2b5229ca72. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/TCAHR2342764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eefbfffd4044b6e472e5e4af417fa3e9c0d6d7ed72114649e3084a82f35f19. 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/TCAHR2342765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc12154a41a19f4d218ec9b8570356adf2b7a5419aa792be3955db6d0f462b0. 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/TCAHR2342767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb4318ffb0d740226a8ba257e0af369f1af880dd1dd62037872575e7ce18d62. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAHR2342768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac997fe1a5fea52bc51c82b81cfea05a93e5083a72da329fb390f75fff09f6a9. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:46:23Z), 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/TCAHR2342770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b209126360b915639059a74b0d7c5291f39a518f2b25071d0356268305f58e0. 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/TCAHR2342773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf2bead8b0c5c7ea3989104ffe22907286cec2d87152d51a4b0920ab0e74c4f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/TCAHR2342775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a245ba102cf948f538807a16356def4f2740c2a5b239c7b6b3e297eceade96a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:34:45Z), 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/TCAHR2342779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d614ade58834cdc9457838f2bcd4289b48bacbfb39bff232131e10244315d4. 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/TCAHR2342684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10149d060b208a9ce0e7b2423fc450ff890ef6e74a24faa65cf61da0863aace. 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/TCAHR2342690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4580ec0a326675b5f3405a8dccbdb8ce1ff1fbe525b3b6e42da40ea83a2293. 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/TCAHR2342692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1371ba0d4196398869c988e88f6cff68814b3a5b309d554df7637d6c8e570c. 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/TCAHR2342693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8b301a572a8eff0e9e7358d9a2e24b6d577a23ef525435150e32dff19a323a. 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/TCAHR2342695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe829f2f4991f5e7ebb977a4b01f6d6ac134de1592fa90b1b48759194d3e887db. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/TCAHR2342699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3141fec37a33189f103a6047b7737ac2a2dc2fcfb7b1338e9ecf4aeebd7791. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAHR2342703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0c4262a05f9f1750820f7d68792c5448f7bf3b923ba9cad3503ec82e4a1d19. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:44:48Z), 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/TCAHR2342705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74e96b9224d5d6a26517521d891254095f191e3c98365cf5e9e58bdcc3dc8cf. 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/TCAHR2342721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1aeb8c3e50074ebe90f65134e595eb3faf57809a8437f418f7b8f5640883811. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/TCAHR2342723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2cae244531c5bcbc278c2747c3559ceb92a7a33682b95a88b46161860e3422. 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/TCAHR2342725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9800206456ebadb0447838868a8dc61624508875ceea6af1c0cf995f3e5dcf29. 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/TCAHR2342726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7cce5094d3012ca5510fde1437a9ca0df755a43430bbb67e4dea1fa3661297. 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/TCAHR2342729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3fbce3f7af055e9d38dbca45a3302ac319e7cef5949d07ec6b157c723cac3c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/TCAHR2342730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b62800191dfc5b02215cdd8d1c268a56900661efe0a61076b2ebd2d67c7501d. 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/TCAHR2342732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b4253e04fd3deb91bee23c20577b06197a24e2b2822f4e6d6272c85a56fd71. 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/TCAHR2342734.