ISRC USSM10206818
Verified recording
USSM10206818 is “Ohne Sorgen, Polka schnell, Op. 271” by Josef Strauss,
registered on the CopyrightChains blockchain with CopyrightID
0xc4b1bccea9b8fb2e7f62391b5418dbda4b003bd3c1e57678df7583d7555fd152 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10206818.
Recording identifiers
- ISRC
- USSM10206818
- Title
- Ohne Sorgen, Polka schnell, Op. 271
- Artist
- Josef Strauss
- CopyrightID (CopyrightChains transaction hash)
0xc4b1bccea9b8fb2e7f62391b5418dbda4b003bd3c1e57678df7583d7555fd152
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:95dffc22a10fc1359154346c7587e85f4540f1069b7154ee654c51b1226c6a44- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10206818
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Ohne Sorgen, Polka schnell, Op. 271 · Machine-readable JSON-LD