ISRC DEF059030438
Verified recording
DEF059030438 is “Le nozze di Figaro, K.492 / Act 2: Quanto duolmi, Susanna (Contessa, Susanna, Cherubino)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xf2e21f48b3a2efd6659c3a17d781585c4c1d79ef67c27a0e1ec5eebec6cfafaa and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059030438.
Recording identifiers
- ISRC
- DEF059030438
- Title
- Le nozze di Figaro, K.492 / Act 2: Quanto duolmi, Susanna (Contessa, Susanna, Cherubino)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xf2e21f48b3a2efd6659c3a17d781585c4c1d79ef67c27a0e1ec5eebec6cfafaa
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:c72d1b226ac9a0f712754e0bc5b784aed2c8bb2e1521f7c9eef9fa712205fb6d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059030438
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Le nozze di Figaro, K.492 / Act 2: Quanto duolmi, Susanna (Contessa, Susanna, Cherubino) · Machine-readable JSON-LD