Yosef Goldstein (; 29 March 1932 – 1 November 2020) was an Israeli footballer who played as a midfielder for Maccabi Tel Aviv. He made 25 appearances for the Israel national team from 1953 to 1961. R
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 0x8d912a08a6be5511537b8617ac8b96872e1c208baeeb905fc34ed793afa51d90. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be0b8dc1-58e7-413c-aa86-897c81c98ea7.json and https://artists.proofprofile.net/proofs/artist/be0b8dc1-58e7-413c-aa86-897c81c98ea7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).