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 0x42a93c17cd3d7aa51cdd204158dee62615c5079c0fa6d313702738463fa131c7. 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/c16ff897-ba32-47b6-82b9-930eb3772077.json and https://artists.proofprofile.net/proofs/artist/c16ff897-ba32-47b6-82b9-930eb3772077.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 0x1431f80f02f3ea65d58f7ca4059c42e9d85bf7995a480af92a30ff8b30154ae8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US7VG1883517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02b6c7b932796331bfd259f3fad5c113225927b83f322ced9e0f56d1fa840c2. 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/BRSME2004020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810b11821d4ae5e08f472e0413661698c3496a5defe1c649c5190b624ded924c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:37:29Z), 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/BRSME2004856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781ddf1f98301c10a6ffd31c21854483ef362e9138bb9c50caeb2a0f8b75cb47. 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/BRSME2101842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a3ba07d6d2f9961feba1a89a75086a977784b710740811cfae58776d54e4ce. 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/BRSME2101844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc353e67286e20830f9d1729ef21dcb6c34fb41f1cfa8c30b4cd5342d4a1e6ca3. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BRSME2101845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1b8a629789e6c7f88b705e35de60fd7ee79b7a5f9923d8e90555d168e9730f. 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/BRSME2101846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496de552b575a970a85e66b8a5fe62b71d02b9bcad60c5c38871b0d4deca0641. 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/BRSME2200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb88431b5649fbd1d659f748070d85e91d63d8604fd16a397f75982095a06ede. 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/BRSME2201788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35273f2742f89c9cfaea368ccd374f6e913767f5f47dbfee66438c784de8b382. 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/BRSME2201548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb88431b5649fbd1d659f748070d85e91d63d8604fd16a397f75982095a06ede. 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/BRSME2201788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c355ec4f07eac530d867624f74386bab1e52a064c5a06e6a45de1cc9c76e7ea. 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/BRSME2201742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc2b81204d6fa09395cafcdbe3aa2d2f5a626f928329ee37ffd859159a76833. 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/BRSME2300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549bb43e5266a5093e51a0381b012c30df9068c1a9667ff584cd5a4d475769cd. 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/BRSME2202092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16bcfe063d8a6ee0577235969e8d532d75400350af9eb8a18d757dbeec75b2b. 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/BRSME2300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd1759af19eb1f2f52afac896ffc71254d88206cddcc2144b7ed030ad726e86. 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/BRSME2300185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88313ae2d6da57244362ceb5aaf9b89b71023129bbbaaff25d2dbd254d103b5c. 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/BRSME2300187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0281068b0755e29a06ea108f23e418c4172e6c562aa663a836304ba1ba7598. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/UKXN22377872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c71e62bc730531fdcf836ea7db3be5b4d857d346bfebf7c769a4ff145e8def. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BCYX72400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbdb794c8a6d68cd00808cfba4754620efbfae853d7f42e02e0ad662278c887. 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/BCYX72400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c71e62bc730531fdcf836ea7db3be5b4d857d346bfebf7c769a4ff145e8def. 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/BCYX72400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4de5592b256a03a84569c43ecde8c9b309637fec0c88d2c9957883d2439e0e3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:02:22Z), 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/BCYX72400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae05be795f4d38128b8ed5a836d3922527d65e46722756a63ca2f4b739dcab81. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:55Z), 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/BCYX72400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8d7085f5e998719208637cdec015b9be042d22c3c167a0c34287d9545d5ca4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BCYX72500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb88431b5649fbd1d659f748070d85e91d63d8604fd16a397f75982095a06ede. 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/BRSME2201788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a3ba07d6d2f9961feba1a89a75086a977784b710740811cfae58776d54e4ce. 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/BRSME2101844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd20bd5c20769335ebbbd7992253fe72807dba91a6eff1ffa301252bfaa949f. 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/BRSME2101841.