Andreea Antonescu is a Romanian singer. Career Antonescu began her musical career at the age of six, participating in music competitions and festivals and winning awards. At the age of 12, she rele
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 0x4c051c6c5dd6ca972a841e9ae0d973597b5aa245103999e43127970167fcb0c3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52da8320-74ad-48f7-9644-ad1e6e17729b.json and https://artists.proofprofile.net/proofs/artist/52da8320-74ad-48f7-9644-ad1e6e17729b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).