Tanlines is an American electronic music and indie rock duo from Brooklyn, New York composed of percussionist Jesse Cohen and guitarist and vocalist Eric Emm. Their influence is drawn from various gen
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 0x39f2602fae525d7717c14008654715da1e6b9ca661b2f4281d315d3c4f7e9d7b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f7badec-bc33-4739-9689-e16c1b0a2b73.json and https://artists.proofprofile.net/proofs/artist/7f7badec-bc33-4739-9689-e16c1b0a2b73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).