ISRC FRU621734610
Verified recording
FRU621734610 is “String Quartet No. 3, Op. 41: II. Assai agitato” by Robert Schumann,
registered on the CopyrightChains blockchain with CopyrightID
0x0b122faebb04fedbfea21d50625053128271fc5b70845a358063e6154e852ffb and independently timestamped
in Bitcoin block 960291 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621734610.
Recording identifiers
- ISRC
- FRU621734610
- Title
- String Quartet No. 3, Op. 41: II. Assai agitato
- Artist
- Robert Schumann
- CopyrightID (CopyrightChains transaction hash)
0x0b122faebb04fedbfea21d50625053128271fc5b70845a358063e6154e852ffb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T18:23:33+00:00
- Bitcoin block
- 960291
- Canonical record hash
sha256:dc5be00b347d42c4ed64484d518c7aae8cc0cf8b4a8da73b8d18bf8d0f22b548- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621734610
- Bitcoin block existence check
- https://blockstream.info/api/block/960291
Full record
Track page: String Quartet No. 3, Op. 41: II. Assai agitato · Machine-readable JSON-LD