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 0xb17157d3516997e70d280c30ebb0345afdb2afce2edfb7efaef1af00fbff2278. 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/d63c8e38-42e3-4968-853b-11ad82588f52.json and https://artists.proofprofile.net/proofs/artist/d63c8e38-42e3-4968-853b-11ad82588f52.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 0xd65d63ed4e5ff34f2889fdac2878b2cce1bbbc88749c8dd2e02452a4b4b02d39. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QM4TX2057257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6690121645522766c6982508ef063ddf50353672c5c2b6c77c242d66d5ce593. 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/QM4TX2057258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0a801da0f61fc6881aef421600ff097cf53a80e094242d0948aa8c737ce8fe. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QM4TX2056595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb5f1cbada0c18345519ce8f27b58cefc6abfa7db29e718d0a05989396708be. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TX2056609.
Пора смириться (feat. Александр «Чача» Иванов)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcf5c85f1f581430dee8564e40c428863fe97a3b7b61bec360b1edb7e8dcd9b. 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/QM7281999528.
Ненавижу (feat. Антон Пух Павлов, Пётр Мухаев)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0de16f524ff4396adad5584dce365d98bb87136c53ff402d2888f2d6ab77ec. 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/QMFME2012873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37087290ed8d5daff553ca110ad491d40384c1b2407fc48a193c21686418e331. 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/RUA1D2425331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce9a1e54907c29c518b993d972aec857f9290655f72b6a92c0bacadb94f536e. 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/RUA1D2425333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5a1aff08cc656e5f54ccd7f750040e839fed36a9ba7fa4098d382382ce5a40. 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/RUA1D2425334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bc9eeec4bb4b9716483efd13d9f56ae6e02a333aa4667f030874b53a080bed. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SMRUS0076406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b058e7aa10338acfe950aefc58c05ea322342f90a2ce4d2acb65b5fc4beedfb. 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/RUA582002471.