ISRC USX761216207
Verified recording
USX761216207 is “Konstanze…O wie ängstlich (from Die Entführung aus dem Serail)” by Fritz Wunderlich,
registered on the CopyrightChains blockchain with CopyrightID
0x8776a3dbb65d0a4d60c5af6af8624b2123337fc60d7b999696ff799f04a0e455 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761216207.
Recording identifiers
- ISRC
- USX761216207
- Title
- Konstanze…O wie ängstlich (from Die Entführung aus dem Serail)
- Artist
- Fritz Wunderlich
- CopyrightID (CopyrightChains transaction hash)
0x8776a3dbb65d0a4d60c5af6af8624b2123337fc60d7b999696ff799f04a0e455
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:00d3c858039fbc77269559379a480e949eedf339404edad87305ea66c0c6e04d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761216207
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Konstanze…O wie ängstlich (from Die Entführung aus dem Serail) · Machine-readable JSON-LD