ISRC FRZ130948090
Verified recording
FRZ130948090 is “String Quartet No. 6 in B-Flat Major, Op. 18: IV. Adagio "La Malinconia" - Allegretto quasi allegro” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xd04076fa01ce6018b62cf59aa0270d81383a1cc1d56e06415587dca56da1008d and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ130948090.
Recording identifiers
- ISRC
- FRZ130948090
- Title
- String Quartet No. 6 in B-Flat Major, Op. 18: IV. Adagio "La Malinconia" - Allegretto quasi allegro
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xd04076fa01ce6018b62cf59aa0270d81383a1cc1d56e06415587dca56da1008d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:129670f11d5a4ab62fb4920b8e2ac107424ea33d60bff5ee36eedeff05c053c4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ130948090
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: String Quartet No. 6 in B-Flat Major, Op. 18: IV. Adagio "La Malinconia" - Allegretto quasi allegro · Machine-readable JSON-LD