Trace may refer to: Arts and entertainment Music Trace (Son Volt album), 1995 Trace (Died Pretty album), 1993 Trace (band), a Dutch progressive rock band The Trace (album), by Nell Other uses in
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 0xe0aa0a768e9ea433f848798b657b599aa9634656c905e1e502fbe05ad347a538. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d023de0f-8006-47da-860a-edf1ea10469b.json and https://artists.proofprofile.net/proofs/artist/d023de0f-8006-47da-860a-edf1ea10469b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).