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 0x123af759b8ec9e2f35cc9ed9e2a9ebeb796580886b11ac06e744518fdd0c0762. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d1b1df6-58b2-4880-a259-6567cb740bf0.json and https://artists.proofprofile.net/proofs/artist/1d1b1df6-58b2-4880-a259-6567cb740bf0.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 0xdd128cc2291debff15fb65b2ffdbd12a302966e255f71c5a27622ceef381c3cd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCADI1724472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabec77946f07fc3e7b94966fe7e8880ba41160f60b69a7a8822fd2c03b799cff. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:18:07Z), 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/QZMEP2056479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe19d5721917ab0d7d278b5e208bce764442ed655d22f683632b1d6dad845b7a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:02:21Z), 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/QZNWS2036842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf643f8e60e4fa87ce1f7f07ff3e0d1c42420ebfefe48c2408b98e0167756ad23. 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/QZHN62145131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55849067e8534908cf636311a030fa3c88c4265970eeb05960ad5bb6de6d4e3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:34:27Z), 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/QZNWZ2186396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45146284fc6d12f042195fa437ab3ea8ddcc06686ed814dc44ab7c1bd695af98. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHNC2249319.
All That We Got (Live @ Endure Studios Nashville)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72d91c5c2c80e906da757827222892581c76ee53d49d21e1040ae7694f52179. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:56Z), 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/QZWFN2360931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2db9651a2e928473ac70a4a3a1ae336d36da9307a81e30fc96312f1fcac453. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:05Z), 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/QZDA52400879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9922a0b8b99a5374b163dc102bc6c96177f3ac3a741a52088841577179069274. 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/QZDA52400880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df42588132780efdec34a9f814bf9e8e5aebf625b8c094847138b1055fadd68. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:42:49Z), 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/QZDA52400881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcb891d18d128865f8915d424db4d004570e8db6434686b6b5ca9decf3fa990. 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/QZDA52400883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9d2f6e2c9ed0bc4fb39040f8d128277933b0a0ed43968494f148ed25de3429. 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/QZK6L2404786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dc877788344490f388c1d606b5444876a1444ef58c644f03e8f41980629822. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:43:07Z), 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/QZWFV2410284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58452777588a0ec8a9732cfb59e8f061d9c734b46ebec56a0c966d4731ccd401. 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/QZHN62534351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabec77946f07fc3e7b94966fe7e8880ba41160f60b69a7a8822fd2c03b799cff. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZMEP2056479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767f2d090b898f55478caac921a0d9fc394b5b949f475d3e5a1102143dec204c. 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/US3DF2593199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece5edad3df9700f0c9ba1cb4c1c0f26e6a179a59c3dbbfe4d1da608c293a7cb. 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/QZES82188850.