ISRC USASX0623518
Verified recording
USASX0623518 is “Duet No. 4 for 2 Flutes in F Major, Fk. 57 (arr. for flute and oboe): III. Presto” by Wilhelm Friedemann Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x8572791aa37b89e10dfb64fffb46b6cb9a274eeb1a98d6adbed8a958e1021954 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/USASX0623518.
Recording identifiers
- ISRC
- USASX0623518
- Title
- Duet No. 4 for 2 Flutes in F Major, Fk. 57 (arr. for flute and oboe): III. Presto
- Artist
- Wilhelm Friedemann Bach
- CopyrightID (CopyrightChains transaction hash)
0x8572791aa37b89e10dfb64fffb46b6cb9a274eeb1a98d6adbed8a958e1021954
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:2fe65908ba555f0a583cd302c992c9b6989121eb3e80cc314062bb54ba8e1f49- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0623518
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Duet No. 4 for 2 Flutes in F Major, Fk. 57 (arr. for flute and oboe): III. Presto · Machine-readable JSON-LD