Minimum Serious is a pop punk band that formed in 2000 in Grenoble, France. Their lyrics are in French and English. History Minimum Serious has released two albums, "Fantastic World" in 2000 and "Pro
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 0x6ae0976dab4cbce1b4965bfaa031fd8498dda4c9e7bf6bbf9396c1d64bc6de26. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/538d6b67-0bd4-4fb1-83ad-fdac548fa656.json and https://artists.proofprofile.net/proofs/artist/538d6b67-0bd4-4fb1-83ad-fdac548fa656.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).