Grażyna Auguścik (born 17 August 1955) is a Polish jazz vocalist, composer, and arranger.River CD. 2001 Grażyna Auguścik/GMA RecordsGrażyna Auguścik's web site http://www.grazynaauguscik.com/ She freq
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 0x849bc6955aa87e0bc9a6b7dcb1530fe40eceb1bd04b7edf51fbef27380b6af87. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19f4c057-2901-4a80-ad67-6d9777a73198.json and https://artists.proofprofile.net/proofs/artist/19f4c057-2901-4a80-ad67-6d9777a73198.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).