Abdolvahab Shahidi (; 23 September 1922 – 10 May 2021) was an Iranian barbat player, singer and composer in the classical style. He is noted as one of the contemporary pioneers of Persian music by BBC
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 0x195a773060f18195b00249065df31ad6e4d766d3cb28c225f009eaa3744fbc2e. 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/63bca21a-adc8-404a-b264-6b4b0d186fd5.json and https://artists.proofprofile.net/proofs/artist/63bca21a-adc8-404a-b264-6b4b0d186fd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Golhaye Rangarang No. 264 & 494 - Persian Music
The Masters of Persian Traditional Music, Oud (Instrumental)