Sweet Japonic is a roots rock band from Grand Rapids, Michigan. Together they fuse blues, rock, folk, funk, and soul into eclectic rhythms that carry both an old flavor and new flair. Their 2006 seco
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 0x9e3b6c0e9d61e4903fb5c5bdccd272256ad634392462aef228aad03c5bb44b28. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4c70bb7-a239-40c3-a009-d45e17609279.json and https://artists.proofprofile.net/proofs/artist/a4c70bb7-a239-40c3-a009-d45e17609279.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).