Chase Foster Jackson (; born July 20, 1994) is an American track and field athlete who competes in shot put and discus throw. She won the gold medal at the 2022 and 2023 in women's shot put, which mad
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55224d52f034eb09b0d8ee961b6af68a47891c72383e0cba19c907c07a212f3. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eacd89f0-340f-4fa4-a513-8db01b6d9d36.json and https://artists.proofprofile.net/proofs/artist/eacd89f0-340f-4fa4-a513-8db01b6d9d36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).