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 0x3137f48743ad711003802dd5094a16ebe693525c0ab1a9a45375347e4a2699aa. 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/bbcc7ebe-66d2-46ec-9680-50ee43d8dc1d.json and https://artists.proofprofile.net/proofs/artist/bbcc7ebe-66d2-46ec-9680-50ee43d8dc1d.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 0x812d871c8ed27a98aac655a77749662e6c114cf4cf1e0291f22051dd39af7d51. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P2333378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc93befe4e852cc1f87bd0b71da27f4db0d1252f9bdb729c006debb13910395. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2334152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4771aa90200b8a230fdc99d83ebbde7ae68dcd807b6ccbde2dcd5eccdbd0016c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2335553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52908dc44cd4f029cdc99ae243e9e3222a42281c7c64a99a10ce5404eda64ab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2335554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5c215475b833f734b00f1d3b53aa6099373ebd7fd833a5aa74dacbd102ef60. 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/USA2P2335555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ad880f006e588f3e1fdb72ca3ce5291c0471e018b2ac7bbc71b6d98b204a9b. 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/USA2P2334150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5abac6ef2685881a395ad75ed7646d1ae00cabed171638ee2f1c022aaadf99. 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/USA2P2335558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33ab4aed1b514dd57ed36cd682de1f619567a9d81bf1de0129cda7dcebc3de4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2335559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f59e26e43e88a39ec31131cd8d20cf55b55cb88dcea92758031e0f864af12f. 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/USA2P2335560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a66c1879b7a38f2a8ee860a631e2eedadf1f26c718fbd23449feed4f484a52. 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/USA2P2335562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcf57fa32a8e078f72c208b094181714139dee0d960cb6a8ef423bbcd728284. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX762281423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6f909128d015fa6b6d3fae8db3080ecf27eb0b56db0a101004c4c52d108cdb. 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/ID2DY2400229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4f8fa90b2a7c04b520e3edf6b5e7358f7968f4e11b85d8f1c9eddbc9d744d4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX282397354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8deec93890308cc3553524d5fb7f1d89a3c9efaae3c6c40e0099554a251bce5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX202033738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e9bffeb09532c04fd3b21dd454bc7925d668e71fb89e1a708ccf2a716a4052. 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/FRX202033739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b275ddcd54b72342b142fd639e6c151a039155d05d80cc089d27500d6b67759. 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/FRX762318575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2509b976ae19bdb277dd7c406d5c97f0c8a3da51e7acd5b7e8541b27fbaacc5. 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/FRX762318576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e7314486877f8099ec038bc781c892e10c11b42389fa815075c5973666f47e. 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/FR2X42312875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04be1bda341a772b523595507f63a8e5c087a27550f604bd5d68fed47e6213c6. 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/FRX762318577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607df5a50f9735556c5eb031d6720d62878993be29ed050c68dbdbfa8a602d25. 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/FRX282343765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf575906fb789ba3924ff46f4bd7e591dcb03e98586c40c1c3fb3b5b37e3153a7. 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/FRX762318578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbc5a03a3d8952ace11beb9d448e4a36df8e31b42bfecfa77ada7448a45d9f1. 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/FRX762318579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3656ec4aa5f064198b95b479cf9492bb05f112e82bd515022dcc1d385a4723f4. 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/FRX762318580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacc0bbf395f1a0fce91e1432ed26a22c089cc8d6c33183cf058523042765a0d. 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/FRX762318581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3bc70555b9ef46cf6ede84e32a70b62b199df35042a9be8c036fadc06d09a3. 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/DGA082324988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9ce19840f500683d273f9d5cc61e010cc18d6ed3570c4127f556a7e0ef4a5f. 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/DGA082324989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d92da2b1bdb4d367b29ee122effd1fa63034f72f04fbc4ec3496af5fec9d8b0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA082324990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d3b65047e667027867519ca8438800a28f4aed0ce388702527e6eadc64b5e2. 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/DGA082324991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49ac2a87ed0fc5b98d151c28ff2d820136939d337a832ff2c7ef5a930bfa854. 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/DGA052254036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa3a4e9173951bedfa96d3579fd79f6391c665aff377b43e42a758a82e41a16. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA052254037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf58530b50f59070a5286f098c723d721fb66853570b0ee8b854dabdc463a77. 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/DGA052254038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddf86bd2acec083e8dd1b1bca03a5bfddc28b85adbdbee6a4b8cb6e6ad0f03f. 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/DGA052254039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba07eeae29e8ce6fd2c49dbfa4a9e162a8b9de51c3d23fc66de37ceef67982c3. 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/DGA052254040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae3043415ff9149c3828e0b19eacf43e5fb0b31a411f030f7bc549705709618. 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/DGA092220345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41891244fe9e8069361aa6ba3a55b355aa01e37be6f7ac96d81e110e6f58c24. 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/TCAIK2453996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a72a978900373fa0cf33ea8d8e5966357d4c606a0d4e0f9424891d272220f0. 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/TCAIJ2454427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179f9c21d3c84ef312904699b4ac067ea4af00f76ee92ed7a494da6065f472fc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX202489516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2790a1b81d8e0afabbda02697e99374c7c7c07948440800c9b723160985b434c. 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/FR2X42254272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812d871c8ed27a98aac655a77749662e6c114cf4cf1e0291f22051dd39af7d51. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2333378.