Eddy Silitonga (January 17, 1949 – August 25, 2016) was an Indonesian singer. He was known for his high-pitched voice. He won several song contests, including Champion Pop Singer in Medan and the Popu
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 0xed972e0678a5fb60e3e753601f296da88e4125a2ef425289e203245ebb5f3ccd. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6bb66a9-b2aa-4396-9f2f-252380cef2f6.json and https://artists.proofprofile.net/proofs/artist/b6bb66a9-b2aa-4396-9f2f-252380cef2f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).