ISRC GBAYC9402753
Verified recording
GBAYC9402753 is “Hoffstetter: String Quartet in F Major, Op. 3 No. 5: II. Andante cantabile "Serenade" (Formerly Attributed to Haydn as Hob. III:17)” by Roman Hoffstetter,
registered on the CopyrightChains blockchain with CopyrightID
0x9d44bb1a28740b4ef36ffe950c05fa098eb7022e7c0315a5f621e69abef1172e and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9402753.
Recording identifiers
- ISRC
- GBAYC9402753
- Title
- Hoffstetter: String Quartet in F Major, Op. 3 No. 5: II. Andante cantabile "Serenade" (Formerly Attributed to Haydn as Hob. III:17)
- Artist
- Roman Hoffstetter
- CopyrightID (CopyrightChains transaction hash)
0x9d44bb1a28740b4ef36ffe950c05fa098eb7022e7c0315a5f621e69abef1172e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:4c106473e24a135729089680630271bd04c061504d2c45802eeea41eb0463f45- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9402753
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Hoffstetter: String Quartet in F Major, Op. 3 No. 5: II. Andante cantabile "Serenade" (Formerly Attributed to Haydn as Hob. III:17) · Machine-readable JSON-LD