El Cambio is the debut studio album by Miguel de la Bastide. It was recorded at La Bastide Productions and mastered by George Graves at Lacquer ChannelLacquer Channel in Toronto Canada in 1998. The t
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 0x334f82672b773a5ad08fbb604c89d96f87c03109cfe13091104b05f67fa24163. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24bf3fa7-7b9a-4af3-bfa4-f3eec5c65667.json and https://artists.proofprofile.net/proofs/artist/24bf3fa7-7b9a-4af3-bfa4-f3eec5c65667.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).