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 0x2ed7c28d437f0a0bbf8ef5a4a5c7c5c5843c5c61f3cf5880ecffd9a42e23ce22. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36e241eb-5a65-4c6d-bdfb-bc9bfec931a2.json and https://artists.proofprofile.net/proofs/artist/36e241eb-5a65-4c6d-bdfb-bc9bfec931a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tikva Lives!, Vol. 17: Israel's Songs of Victory
סימן שאתה צעיר - השירים היפים של שנות ה60 (חלק ב)
סימן שאתה צעיר - השירים היפים של שנות ה-60 (חלק ב)
גדלנו יחד (תור הזהב - הלהקות הצבאיות 1960-1970)