ISRC FRU621734603
Verified recording
FRU621734603 is “String Quartet No. 1, Op. 41: III. Adagio” by Robert Schumann,
registered on the CopyrightChains blockchain with CopyrightID
0xf07c5cd38b920f8db487c46bcc94f56ace2daf029bed24535b262e711ff84d60 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/FRU621734603.
Recording identifiers
- ISRC
- FRU621734603
- Title
- String Quartet No. 1, Op. 41: III. Adagio
- Artist
- Robert Schumann
- CopyrightID (CopyrightChains transaction hash)
0xf07c5cd38b920f8db487c46bcc94f56ace2daf029bed24535b262e711ff84d60
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:1964e70e2bd4acde95675792a9b48551844cd7fc7deb5730309814fc5188497f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRU621734603
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: String Quartet No. 1, Op. 41: III. Adagio · Machine-readable JSON-LD