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 0xda192faab2d074ad8af59fdac7b1ba9478fc3f44625dd03a961a9090db850d0e. Chain 2 (Bitcoin): anchored in block 953963 (2026-06-16T15:12:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27c50710-212a-4881-96ed-7ea8a216de98.json and https://artists.proofprofile.net/proofs/artist/27c50710-212a-4881-96ed-7ea8a216de98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tranquila mi vida, mi vida quiero tranquila
¿Quien ha pintado y cambiado Alaejos? Vol2
¿Quien ha pintado y cambiado Alaejos? Vol.1
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Chronicle of my experiences and disenchantment