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 0xcc4a4e66ab1cca8206187c0dfba481a5b07a6f8bfb6be72bed0e8e02273dae10. 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/b339cd3e-3bfe-42be-a965-afbc902af3e0.json and https://artists.proofprofile.net/proofs/artist/b339cd3e-3bfe-42be-a965-afbc902af3e0.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 0xaf09683059e5cc37f87fb5473ebc12e64b689c2c69f74b1f3fb08d50255fdfe3. 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/FR96X2010796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8759339cde357fa59ac385910d1dd5d7c737d5498a213dda30df858d2ad9b6. 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/FR96X2010799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc6762ef3c9f3ad2220ac25ec5a60139f52690c0b63ddfcb3592d4203cc5571. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR96X2010800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4a6c0b0823c178a242f6c1e8f6a7d4781e68b5f32dfe699d1ca53de92dfef7. 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/FR96X2010802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bc572d16da26a7410cd458be724a8d792de0f77311dcd1f75ea1c2fe912b09. 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/DGA052070859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f7b09808e2bee15066ffe91d57773fcc02cbb1664a9305a3648e04f78267bc. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FRX202135895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba5fff9cddc6120541a97599d6b88e720520205b07b3b8a267053f9e84ace59. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX202135896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6feaee1d196109d87b47cf485a678abab89c391e1f783e07ca6ffae41ab4daa9. 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/FRX202135898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe22fab34a96e3c6bf92eccfcbe6594e688cd5f207c88411a332656def13a28. 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/DGA072435166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132ddf4f9be180f1703161a5805bad9fff9149256472e554669464c7bda82252. 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/DGA0L2463529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcd7e03289ee258ac024d9e8c8bce6f223cd8ade1898a46e7aececc72e94f24. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:34:59Z), 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/DGA0S2481250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10326b1c911ad8d935c40371197e7ef6e543f3e79db5408c9ac28ca4bef2abc0. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR10S2526173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef10b063e3c3e0e8a18b79782e26057d2f34566a264a8aa374d97ca584c0af5. 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/QZL5N2331480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c69b72105aa2c01ac70ff99fa19a267dc2f7f3f50cb727ff5264c069a83ce48. 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/RUAH62423527.