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 0xa0ba842c050ac5fa3784122991ef02dd05060c37b4677000ca9648bc7e7ea35f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/035d0f7e-2dd6-4c1c-9594-16555817aebf.json and https://artists.proofprofile.net/proofs/artist/035d0f7e-2dd6-4c1c-9594-16555817aebf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Archivo RCA: La Década del '50 - Alfredo Gobbi
The Romantic Violin of Tango, Recordings 1949 - 1957
Antología: La Colección Definitiva (Remastered)
El Violin Romantico Del Tango - Alfredo Gobbi Guardia Vieja Tango
Adoración, Memoria y Calor - Tango Summer Nights with Alfredo Gobbi
Vintage Argentine Tangos (1928 - 1954), Vol. 1
Alfredo Gobbi (El Violín Romántico Del Tango) y su Orquesta Típica
Tangorama: An Anthology of 20th Century Tango, Vol. 1
The Roots of Tango - Jewels of the 50's, Vol. 3
The Roots Of Tango - Jewels Of The 50's, Vol. 1
The Roots of Tango - Jewels Of The 40's, Vol. 6
El Andariego (in the style of Alfredo Gobbi)
Camandulaje (in the style of Osvaldo Pugliese)