Sidney Gish (born March 18, 1997) is an American indie singer-songwriter. She has self-released two albums, Ed Buys Houses (2016) and No Dogs Allowed (2017). She performs and records her music solo.
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 0xd0dee607b2227c2a0b04da8759644a58548f1ee3f9f61104808f96887ef83fc2. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0620069f-b17c-43b6-bb7f-dd732a34e5a2.json and https://artists.proofprofile.net/proofs/artist/0620069f-b17c-43b6-bb7f-dd732a34e5a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).