ISRC USQX91702246
Verified recording
USQX91702246 is “Stadt und Land, Polka Mazurka, Op. 322” by Johann Strauss II,
registered on the CopyrightChains blockchain with CopyrightID
0x97a2ec0d467a41dd2045b613f68e7071938c9034d0b2a986a421d48f44b3b4ec and independently timestamped
in Bitcoin block 960276 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91702246.
Recording identifiers
- ISRC
- USQX91702246
- Title
- Stadt und Land, Polka Mazurka, Op. 322
- Artist
- Johann Strauss II
- CopyrightID (CopyrightChains transaction hash)
0x97a2ec0d467a41dd2045b613f68e7071938c9034d0b2a986a421d48f44b3b4ec
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T16:01:17+00:00
- Bitcoin block
- 960276
- Canonical record hash
sha256:0593f56dbd450d6a2f5897d385eff6db31008999a75615d0982b17524b3918b3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91702246
- Bitcoin block existence check
- https://blockstream.info/api/block/960276
Full record
Track page: Stadt und Land, Polka Mazurka, Op. 322 · Machine-readable JSON-LD