ISRC USQX92100815
Verified recording
USQX92100815 is “12 Variations in F major on "Ein Madchen oder Weibchen", Op.66” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xa2aa544d739eea855ebf0aa0eb07e86bef5351506ef99acb7c378349cd10482d and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92100815.
Recording identifiers
- ISRC
- USQX92100815
- Title
- 12 Variations in F major on "Ein Madchen oder Weibchen", Op.66
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xa2aa544d739eea855ebf0aa0eb07e86bef5351506ef99acb7c378349cd10482d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:47548b0a063d773c99ca8bb92282ea76d7c7cc242b799ce3bab4635323bf4acd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92100815
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: 12 Variations in F major on "Ein Madchen oder Weibchen", Op.66 · Machine-readable JSON-LD