ISRC USQX91903584
Verified recording
USQX91903584 is “Freuet euch des Lebens, Walzer, Op. 340” by Johann Strauss II,
registered on the CopyrightChains blockchain with CopyrightID
0x240e9b9a585c0c17b3449ffd0bded270382ae08c8dd5959a84a662d3a736a16c and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91903584.
Recording identifiers
- ISRC
- USQX91903584
- Title
- Freuet euch des Lebens, Walzer, Op. 340
- Artist
- Johann Strauss II
- CopyrightID (CopyrightChains transaction hash)
0x240e9b9a585c0c17b3449ffd0bded270382ae08c8dd5959a84a662d3a736a16c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:8272b013faf989d0575713e9e902aa13c0b569604dc41b02936ee883783e0901- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91903584
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Freuet euch des Lebens, Walzer, Op. 340 · Machine-readable JSON-LD