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 0xa0f50e1f64b0faad97f25a89ced69e31da971f05f60984a319216946566748eb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b501f266-4495-4812-8d5a-525d358a0d54.json and https://artists.proofprofile.net/proofs/artist/b501f266-4495-4812-8d5a-525d358a0d54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medley 2 (No Jew Will Be Left behind, Forever One, The Time Is Now)
Medley 3 (V'eynaynu, Hu Finu, Boruch Hu, Y'Hey Ravoh, V'he Haschodesh)
Medley 5 (V'Hoer Eineinu, Shoshanas Yakov, M'shoich, A Letter to Moshiach, Henay Yomim Bo'im)
Medley 6 (Utzu Eitzah, V'Amartem, Ki Shemesh, Henay Matov)
Medley 7 (K'ayol, V'zakeinu, Tov L'hodos)
Medley 8 (M'eloch, Krachem, Ki Visimcha, Sameiach)
Medley 9 (Onah Melech, Tzomoh L'cho Nafshi, Ko-Ribon)
Medley 10 (Koraiv Yom, Zachreinu, Ki Nicham)
Yossi Green: Zemiros Shabbos with Reb Berish Vishever