ISRC NLA508208905
Verified recording
NLA508208905 is “String Quartet in F, H.III No.17, Op.3 No.5 - "Serenade": 2. Andante cantabile” by Roman Hoffstetter,
registered on the CopyrightChains blockchain with CopyrightID
0x0d05ec3481949f986b8b8407ba4f1997205e5da45706074b290b759cbf536d9a and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508208905.
Recording identifiers
- ISRC
- NLA508208905
- Title
- String Quartet in F, H.III No.17, Op.3 No.5 - "Serenade": 2. Andante cantabile
- Artist
- Roman Hoffstetter
- CopyrightID (CopyrightChains transaction hash)
0x0d05ec3481949f986b8b8407ba4f1997205e5da45706074b290b759cbf536d9a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:dfb2a77c9fcabc7dd6a186df9be5caf925733d19d6e691065cc37abbd3af6cb6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508208905
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: String Quartet in F, H.III No.17, Op.3 No.5 - "Serenade": 2. Andante cantabile · Machine-readable JSON-LD