ISRC USX761114506
Verified recording
USX761114506 is “Mazurka” by Karl Doppler,
registered on the CopyrightChains blockchain with CopyrightID
0xccd1bd8e66ceb34af3beb478e34767685e20a32610340d4a7285cb68bd29acb7 and independently timestamped
in Bitcoin block 960108 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761114506.
Recording identifiers
- ISRC
- USX761114506
- Title
- Mazurka
- Artist
- Karl Doppler
- CopyrightID (CopyrightChains transaction hash)
0xccd1bd8e66ceb34af3beb478e34767685e20a32610340d4a7285cb68bd29acb7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T13:09:35+00:00
- Bitcoin block
- 960108
- Canonical record hash
sha256:081f4023b5a79bc29644f0d71611902e1ac6caecf42b7a895cfa216dcc41c1a5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761114506
- Bitcoin block existence check
- https://blockstream.info/api/block/960108