1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb2272d11b9f5bb23d45b5dad33d7ad2113fe539ff94af8609072fd981a4cb8. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4f589b1-a5da-41a7-a9a2-11bddeb6886d.json and https://artists.proofprofile.net/proofs/artist/f4f589b1-a5da-41a7-a9a2-11bddeb6886d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ארבע אחרי הצהריים ד': מיטב השירים מתכנית הרדיו
ארבע אחרי הצהריים 6: מיטב השירים מתכנית הרדיו
גדלנו יחד (תור הזהב - הלהקות הצבאיות 1960-1970)