"Slashdance" is the third episode of the ninth season of the anthology television series American Horror Story. It aired on October 2, 2019, on the cable network FX. The episode was written by James W
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 0xd6b101f9182e6381e46a56ba226fa4a2242f08b97079e68c9e51f34a94ae99a0. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a91724ae-0364-4dd0-a315-c245f7f25ae6.json and https://artists.proofprofile.net/proofs/artist/a91724ae-0364-4dd0-a315-c245f7f25ae6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).