Ivan Vandor (13 October 1932 – 15 November 2020) was an Italian composer, musician and ethnomusicologist of Hungarian origin. Life Born in Pécs, Vandor moved to Rome, Italy with his family in 1938.
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 0x66438a84dc166fc3de4d6cd1eabba8a37028e742fc7051774ae8f07aaafd8cfb. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d763205d-86da-468e-b563-8ef08ef69cce.json and https://artists.proofprofile.net/proofs/artist/d763205d-86da-468e-b563-8ef08ef69cce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oltre la notte (Colonna sonora originale del film "Andremo in città")
Gangsters - M15 - From "Bersaglio mobile" / Remastered 2022
Boom! Italian Jazz Soundtracks At Their Finest (1959-1969)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad68618b165d41d039c422ad648d82e76cb5e0d69b0085751120aebe2fbd83c1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITC002101145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89ae83da3dcf4770e9534f2799e55e722b4d9b58c47207dae3116ac72fa7aef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4QP0867501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5716dbfcc511db3b54d9effa7df6c020b7be5b7eb96f6f857854fd86cd796036. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEKE1927141.