Kuya () is a rural locality (a village) in Talazhskoye Rural Settlement of Primorsky District, Arkhangelsk Oblast, Russia. The population is 3 as of 2010. Geography It is located 50 km north from A
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 0x836247590e654c53a605260b905b72e6660278b92af0cdff73fac5534d143a4c. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/363d5c0c-bac9-4bf0-9a97-b84e0d4a48a1.json and https://artists.proofprofile.net/proofs/artist/363d5c0c-bac9-4bf0-9a97-b84e0d4a48a1.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 0x43a2a3119a90732e298a44129cf39ae93a02dc08588ed019ff6d6dfe271c728b. 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/QZPLS2389173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c372b3511b7be8c3ec94ebfcc122c046b34ace814d46ef725ff89a9dc79ab39. 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/QZDA52479724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040f01aa0f184d19f22280dbc02e3d7801fab988f79597e91ecbcc3c8e0fcf5f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZZ7M2445061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555e590fb0340cdb3ff02326bdc7e3411c1c5790f50e3abdc5aabf7c9e049aee. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:34:06Z), 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/QZZ7V2447099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0f27ea2b88c03d8421a14b99c3fe0eb48b6a012ead35a89ef857ac5ed2e68b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTB72533666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47a4f9c46d0f8e318693f31e023b6c1edca02506ac2fd9ccced5036fd3cf945. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:03:33Z), 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/QT3F52509066.