1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xbafaf97f4380e9dac017da84c5571843b8c6ec6dd19eae0309f9d32ca162f1d9. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da3ef495-ccc2-41ac-9df1-03c45c695cf6.json and https://artists.proofprofile.net/proofs/artist/da3ef495-ccc2-41ac-9df1-03c45c695cf6.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x146051f2233fc06d393bf8287ce117155d35d51e5638b5d250b6d9168e4cdd22. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T03:58:57Z), 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/UAAO10900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55571b8628d9b391324c19d427de75b809c10c50bf438e59eea9650bf9c8671. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/UAAO10900115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7003ca21e63aad5155d474d96d70ba0a74f083a5607314b98d06e5fcf516c8db. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UAAO10900122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca8e8627485844415469bf79569a0116772d86922c9d20eaa4aa2c31ce3f57d. 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/QMPU51634039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3200294ff252db530e4c2a58e093c01bd3c5ce00c41f8b00919d7264c78d52ed. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:35:09Z), 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/QMPU51634042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970b936cc1157a8f345ec7fcfb0346869a2d52efd5ab1ca8bc2bd5192058af7c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/UAUG11600535.
Чорними хмарами (З к/ф "Червоний. Без лінії фронту")
Чорними хмарами - З к/ф "Червоний. Без лінії фронту"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbad2d10b3dbdddfe09556c143b97bbb92f41c9160256ec06be6a98140214c9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/RUA1D2060937.
Чорними хмарами (З фільму "Червоний. Без лінії фронту")