ISRC USSM11306213
Verified recording
USSM11306213 is “Laxenburger Polka, Op. 60” by Josef Strauss,
registered on the CopyrightChains blockchain with CopyrightID
0x54025bb5cec4a3cb89da52db77f8f07e447fdedecdf02c4e0969f72e58152ec4 and independently timestamped
in Bitcoin block 960095 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11306213.
Recording identifiers
- ISRC
- USSM11306213
- Title
- Laxenburger Polka, Op. 60
- Artist
- Josef Strauss
- CopyrightID (CopyrightChains transaction hash)
0x54025bb5cec4a3cb89da52db77f8f07e447fdedecdf02c4e0969f72e58152ec4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T11:07:37+00:00
- Bitcoin block
- 960095
- Canonical record hash
sha256:0079666a73a4af21e01be2722f85f7479bac56cf954f96e1b98b3ce2bddf7af1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11306213
- Bitcoin block existence check
- https://blockstream.info/api/block/960095
Full record
Track page: Laxenburger Polka, Op. 60 · Machine-readable JSON-LD