ISRC USAJE1314109
Verified recording
USAJE1314109 is “Impromptu No. 4 in A-flat major, D. 899, Op. 90” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0x612923e76f3aa3b660cefda0c704b558210ebff52100fb1aa028e2027bce6e0a 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/USAJE1314109.
Recording identifiers
- ISRC
- USAJE1314109
- Title
- Impromptu No. 4 in A-flat major, D. 899, Op. 90
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0x612923e76f3aa3b660cefda0c704b558210ebff52100fb1aa028e2027bce6e0a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:205ca8be07d039274a2a6f95141f364d1174ba0976645123d5373d57d449996d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAJE1314109
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Impromptu No. 4 in A-flat major, D. 899, Op. 90 · Machine-readable JSON-LD