Syabry () is a Belarusian pop group, established in 1974. Ensemble Syabry of was created in the early 70s, the first was composed of friends – musicians, graduates of Sokolovsky Gomel Music College.
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 0x15ffe1cc78c2e0b280e19e665a1efa5c5aef1fafcbe2e25ea61bb2e2cf6114e4. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04789e45-2ac6-493c-8bbd-5461e7d2d582.json and https://artists.proofprofile.net/proofs/artist/04789e45-2ac6-493c-8bbd-5461e7d2d582.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Произведения Игоря Лученка в исполнении ансамбля "Сябры"
Анатоль Ярмоленко и Сябры. Избранное, 2009г.
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 0x4d7e1f16e5a42c00ada38af3e0fde96aca7a1538ef8b91fad72b7c52e3b3e5f0. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCACM1670846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726ec7b826bf1a717ac341523ddb616060a598bf9eedbd7f1dd8f691a6f0f608. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCACM1670854.