Sasha Waters also known as Sasha Waters Freyer, is an American documentary and experimental filmmaker, feminist and educator. She has produced and directed twenty films, most of which originate in 16m
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 0x4594fd4b7c2e8d1ca58bd617a4a4c150a112086b1207aed053c8522e1888f5fc. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b00ba15-c499-495e-8eef-4ef69f5f7ccd.json and https://artists.proofprofile.net/proofs/artist/4b00ba15-c499-495e-8eef-4ef69f5f7ccd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).