thumb|Artur Bodanzky at the Metropolitan Opera in 1915 Artur Bodanzky (also written as Artur Bodzansky) (16 December 1877 – 23 November 1939) was an Austrian-American conductor particularly associated
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 0x4dd246ec0238852c2f23076f0fbbc938c12d2e25dcfe6e879a53a51913115e5b. 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/7234e544-b9ad-4b12-8158-b6bf2fa019bd.json and https://artists.proofprofile.net/proofs/artist/7234e544-b9ad-4b12-8158-b6bf2fa019bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lauritz Melchior, The King Size Hero, Vol. 6 (Recordings 1929-1941)
Lauritz Melchior, The King Size Hero, Vol. 5 (Recordings 1925-1938)
Parsifal Lauritz Melchior's only surving recording live
Wagner: Les grands opéras I - La discothèque idéale de Diapason, Vol. 16
Wagner, R.: Gotterdammerung (Ring Cycle 4) (Metropolitan Opera) (1936)
Strauss, R.: Rosenkavalier (Der) (Lehmann / Stevens) (1939)
Opera Arias / Songs (Baritone): Tibbett, Lawrence - Bizet, G. / Leoncavallo, R. / Rossini, G. / Speaks, O. / Wolfe, J. (1928-1940)