ISRC FRU621734609
Verified recording
FRU621734609 is “String Quartet No. 3, Op. 41: I. Andante espressivo - Allegro molto moderato” by Robert Schumann,
registered on the CopyrightChains blockchain with CopyrightID
0xf3b3d0f35efecc22846e4ad1da47144adb9f1ce972fc1d766d5c35e0d8b67c14 and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621734609.
Recording identifiers
- ISRC
- FRU621734609
- Title
- String Quartet No. 3, Op. 41: I. Andante espressivo - Allegro molto moderato
- Artist
- Robert Schumann
- CopyrightID (CopyrightChains transaction hash)
0xf3b3d0f35efecc22846e4ad1da47144adb9f1ce972fc1d766d5c35e0d8b67c14
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:1024dcd817d8f7417712a90bfa316b8aeba0c0a26a14a7d2ebc6023e13d247bd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621734609
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: String Quartet No. 3, Op. 41: I. Andante espressivo - Allegro molto moderato · Machine-readable JSON-LD