Zosia is a given name or popular diminutive of name Zofia. Notable people with the name include: Zosia Karbowiak (born 1980), Polish singer-songwriter Zosia Mamet (born 1988), American actress and
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 0x914ad2e0fe0664991e90120d38f44de7889b202466f96de032535a8a35304cc0. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2706d1f6-dc7e-4f3e-b28d-eda74fb989b4.json and https://artists.proofprofile.net/proofs/artist/2706d1f6-dc7e-4f3e-b28d-eda74fb989b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).