John Christian Contreras known as Jay Chris is a Costa Rican singer and producer of the Paraguayan band Salamandra born on March 8, 1982. Career Jay Chris is the producer of the Paraguayan band Sal
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 0xdf843470ed5064ed64c052c3f631cb043c2ff7028474a340d090be1549ff3377. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67e627a5-51d3-4527-bd73-6b9f2b4f199d.json and https://artists.proofprofile.net/proofs/artist/67e627a5-51d3-4527-bd73-6b9f2b4f199d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).