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 0x6adfe332a25055032bbb1aea31105024655cf2d3bad3a36c567da2c1d3bdd812. 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/4660219f-7589-4653-bd19-e133ad5fd438.json and https://artists.proofprofile.net/proofs/artist/4660219f-7589-4653-bd19-e133ad5fd438.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 0x8ff7d38a938e7fbf6949c2706706daf626a2dc24b61f198f78c63672db3d7ef3. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QM6MZ1473525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366edfb0caaa753c424700f980c47c336b20dc8cb3c000bc1d07c6170def6bef. 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/GBPR61500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b08b618fe8fb0d7ad403b17785bcfdc977a0f4cc8fc54459926be12aa2a610. 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/GBPR61500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cb13d7d8b1a21f9c6d663d2938d74a8c0536f2347487366114b49c56340e5f. 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/GBPR61500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fa0fd809db01baa94a7b2dc47837e6d426f4e58d8357a38c79d5e3391906a8. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:19:24Z), 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/GBARL1700561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf879d56a60bb3e12117f6166ac84e9daa3281ca8044ae8726db710f4ccac7864. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:45:50Z), 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/GBARL1700562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96330950822cdd26f7dee8d7510872134b1c293876237050372938138f71727e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBARL1700563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97406f298f6f81591feb6e6a665bfdc714edd119cd624f8c3d196eb0bd104857. 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/GBARL1700627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24bc601e784d3c69e6d19d4540cef64223f9567e6028bd1871bfc007185fa86. 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/GBARL1700565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe8204d5fac9646af630149ce7d84223039493ce197cf2aa91d8430831f8fa1. 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/GBARL1700568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cedc32103bcad8b593a754e93aa24cb5f6a3c82a9bad9310a39d45ad85d508. 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/GBARL1700567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb333ab62dc1600a49f6bade9262629e160e3496f459c60469e21b94da5f6963b. 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/GB9TP1800401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96d7600e92ca5e76d30abb6b0985641ae658271e7587eae83494fb884e4fdc0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:08:19Z), 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/GB9TP1800424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5880b2e95a527e73db41fa42709320aa8bc23dacb7bc82d97d33d92d6c45fb7. 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/GB9TP1900962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f0a5fe6366b8c321984444b1899f979e5e8b077108f10f5548d1d551a193c5. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GB9TP2000527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653ffb40be25d37ed5f6c9902c61a474cc93f4531eb89c7969529271616def72. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:32:45Z), 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/GB9TP2000528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb381bd1564f45448bf6c7a2f5bfa92519c38490bfafee5ea5b72eb9f883796ad. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GB9TP2000532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc72b2f4ed3b65117c3f0d59b09a7ce19c00b7eb2c93d12a7b935496f5f4b67. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/GB2DY2200407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb287fbac7ad30069b573f125965f0b0ca3eeeea977f33a52da84127502ad7af. 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/GB2DY2200414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf274b21b03b11b33e0de1a6223674f9fd97d7bcafaa3f0e5536eb60795c4b4bc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB2DY2200405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7a0acd253745daaac3b066b7303ba382eaf9a1c7f447cbaf74ef4abf55c8fb. 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/GB2DY2200406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaef71053da3db11b348671cb535caa0b662b13c20edf35e57601c30c03c717. 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/GB2DY2201081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183d9cdc8dde89f0ef2ecd5374be97ea2c49b1565dbc494972cf72f10cd923dd. 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/GB2DY2200408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31866a1ec16791f297696e78a736badbce62e8352bcc4e52ac5a41e96476b489. 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/GB2DY2200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b937e278cc00dd171f0bedb70debbec503e59f853d404061d25f85c152181d. 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/GB2DY2200410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2affc5db375a3f0e014b1251c66999e5f20f5decaf4781559f0774e89de2c606. 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/GB2DY2200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5a8d1073c920db30f29ea339d57b3347e3bf41e3ecaef4f54b0028afa151e8. 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/GB2DY2200412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2abe7de0c8567771648f1b3dc03f533d6d690f82f9e374761cdfdb4d12f57c. 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/GB2DY2200413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb287fbac7ad30069b573f125965f0b0ca3eeeea977f33a52da84127502ad7af. 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/GB2DY2200414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afae3b2f69b4ee3ff5ccf73b557888c5d47bbfd4a764c23e47fa5e6e4dfc014. 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/GB2DY2200415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5387c06fbafd7251972de149a08fea2031a55dc405ec147736dc74f7e05143a0. 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/GB2DY2200416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dd4ba49f0820d60b13871464a0aeb30926cbcfa21b2f7474177d17e5b8d7c8. 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/GB2DY2200417.