"Under the Bridge" is a song by the American rock band the Red Hot Chili Peppers and the eleventh track on their fifth studio album, Blood Sugar Sex Magik (1991). It was released in February 1992 by 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 0xe59fa5c397f9d7bc24b18a8f08360e10e11676e08315017894fff81f2b948823. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ee68ae7-cf4e-4058-8a3d-c2112f582064.json and https://artists.proofprofile.net/proofs/artist/7ee68ae7-cf4e-4058-8a3d-c2112f582064.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).