ISRC NLA506500322
Verified recording
NLA506500322 is “String Quartet in F Major, H.III No.17, Op.3 No.5 - "Serenade": 2. Andante cantabile” by Roman Hoffstetter,
registered on the CopyrightChains blockchain with CopyrightID
0x9b7a2862a42aa062838b207fc0364a2a6c5c8fc62a3f4825f522426e949cf571 and independently timestamped
in Bitcoin block 957020 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506500322.
Recording identifiers
- ISRC
- NLA506500322
- Title
- String Quartet in F Major, H.III No.17, Op.3 No.5 - "Serenade": 2. Andante cantabile
- Artist
- Roman Hoffstetter
- CopyrightID (CopyrightChains transaction hash)
0x9b7a2862a42aa062838b207fc0364a2a6c5c8fc62a3f4825f522426e949cf571
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T09:18:01+00:00
- Bitcoin block
- 957020
- Canonical record hash
sha256:c72236e154ecd31d749f14117fd5d2f142219905496c0f7c9ff0590e0d36b834- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506500322
- Bitcoin block existence check
- https://blockstream.info/api/block/957020
Full record
Track page: String Quartet in F Major, H.III No.17, Op.3 No.5 - "Serenade": 2. Andante cantabile · Machine-readable JSON-LD