Sixth is the ordinal form of the number six. The Sixth Amendment, to the U.S. Constitution A keg of beer, equal to 5 U.S. gallons or barrel The fraction Music Sixth interval (music)s: major s
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 0xda84c289ef06ad79f49afaadb5e67e17ddc65918af7c0193b2b4546e65513c28. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34c4e6db-404e-4ef5-8ba5-bef9068ce6dc.json and https://artists.proofprofile.net/proofs/artist/34c4e6db-404e-4ef5-8ba5-bef9068ce6dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).