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 0x392ddea6ddef8ec9e788b199e6adb7802cc82263e7d36f1ccfda7fb7a78b2af5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7538c6d6-6a43-40e4-97fb-2d40d9d251d4.json and https://artists.proofprofile.net/proofs/artist/7538c6d6-6a43-40e4-97fb-2d40d9d251d4.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 0x4cb7955b9cd50d84100bf41333805f9fcd36e52888cb2169e4fec234bcd6fb89. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPG102000284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771809a363456fea583cbb1e697e67ff1e6e9c07204e52e4b45245edcadb3307. 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/JPG102100612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf706aefa299eb01e55a696c15fcffa23e4969c6a2745a3c4f666f97d7644b8d8. 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/JPG102001149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad9b54e5181a597165307bd7080c3b387bc4bbbaafd4e021067487e09cb09b5. 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/JPG102200915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f2fc1b1949b21a52d63518b59ec0a420f6e8e042b051d95650dbc902cfc2ba. 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/JPG102201536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ed4d6450c8d87f29ef3203217a86ac0b99c89d18d17c504aca2d16c306d63d. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:37:37Z), 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/JPG102300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ccd1f76c4aa6b98e42480b0070b3b3cd9580715bb2486770f3937ac90d3b25. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPG102300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe416782fd50c81afebf466b791aba7645cb86581c158b3f99d0ef36d7c23c463. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/JPG102300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321c860b912ceb29921afe857978855b6bdd7885004c31fc4ddeca4c2d447019. 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/JPU902403232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe829f00c2d9c121fc0145c3b9f0ada6d1bb674ad2ad868158b9e39ddcfecda. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPU902404002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b1092859f6fea74ea7762cedcd1dfb550803fd894593feb8f4188e016519a0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPU902404004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d79bc45b77ec9bf847b13846ac2ccdbd6e356e66e4e3bef1d7b7dfa44b898e5. 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/TCJPX2312574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26c03ad2b265b7ed3542a94da3b3d74cc9e236aa6f6d90e5180a4a50eb35851. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPY862300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d4cc9622cb5a6e8a08bc116b0c91aa61ea560b65befea5639d8ceada719299. 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/US39N2301055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b47a39ffe60219b070f9d8e6df9e9d939630c0e1663dc99555b602e48abc9f. 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/JPG102101217.