Foos is a surname of German origin. Notable people with the surname include: Dominic Foos (born 1997), German golfer Gerald Foos, American hotelier Reva Foos (born 1993), German swimmer Richard Foos,
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 0x4c941a9a776318ce356a01be74a8959775bd300de90bd1162ce554e8b27eb0a6. 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/4ef6145e-ba93-4198-bbc9-c9ed11e7e68a.json and https://artists.proofprofile.net/proofs/artist/4ef6145e-ba93-4198-bbc9-c9ed11e7e68a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stories Like Ours (feat. Nadine Flaig) [Acoustic]