ISRC DEF056131708
Verified recording
DEF056131708 is “Le nozze di Figaro, K. 492: "Sagt, holde Frauen"” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x54e81f7d88703e4a928a7e724cc75dcb70bac19f1e7447db264b03752f5c00ab and independently timestamped
in Bitcoin block 960321 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056131708.
Recording identifiers
- ISRC
- DEF056131708
- Title
- Le nozze di Figaro, K. 492: "Sagt, holde Frauen"
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x54e81f7d88703e4a928a7e724cc75dcb70bac19f1e7447db264b03752f5c00ab
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T22:27:30+00:00
- Bitcoin block
- 960321
- Canonical record hash
sha256:8d16d285d67252630bb182196ab7cc344b4cef24f492ba107c5b9223d2869451- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056131708
- Bitcoin block existence check
- https://blockstream.info/api/block/960321
Full record
Track page: Le nozze di Figaro, K. 492: "Sagt, holde Frauen" · Machine-readable JSON-LD