ISRC USA561067038
Verified recording
USA561067038 is “Impromptu, Op. 90, D. 899: No. 3 in G Flat Major” by Franz Schubert,
registered on the CopyrightChains blockchain with CopyrightID
0xf3c1ef28e1b3304cc17d75d8ffb0d9413aaeab9245de110ef8d33e0f1a4f1a07 and independently timestamped
in Bitcoin block 960489 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561067038.
Recording identifiers
- ISRC
- USA561067038
- Title
- Impromptu, Op. 90, D. 899: No. 3 in G Flat Major
- Artist
- Franz Schubert
- CopyrightID (CopyrightChains transaction hash)
0xf3c1ef28e1b3304cc17d75d8ffb0d9413aaeab9245de110ef8d33e0f1a4f1a07
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T00:40:43+00:00
- Bitcoin block
- 960489
- Canonical record hash
sha256:1383428d08ee1e61838796a59bb38a0833d01a0963190e536c055b8fee69b4a2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561067038
- Bitcoin block existence check
- https://blockstream.info/api/block/960489
Full record
Track page: Impromptu, Op. 90, D. 899: No. 3 in G Flat Major · Machine-readable JSON-LD