ISRC FRZ130880018
Verified recording
FRZ130880018 is “Five Movements for String Quartet, Op. 5: No. 4, Sehr langsam” by Anton Webern,
registered on the CopyrightChains blockchain with CopyrightID
0xbed4dad6fdd29686c83b30b8eb8313416ce633e59f5b0ab1e5b82a0d96de5c88 and independently timestamped
in Bitcoin block 960481 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ130880018.
Recording identifiers
- ISRC
- FRZ130880018
- Title
- Five Movements for String Quartet, Op. 5: No. 4, Sehr langsam
- Artist
- Anton Webern
- CopyrightID (CopyrightChains transaction hash)
0xbed4dad6fdd29686c83b30b8eb8313416ce633e59f5b0ab1e5b82a0d96de5c88
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T23:51:35+00:00
- Bitcoin block
- 960481
- Canonical record hash
sha256:d6e99aad57e762ab4c1bd4bfd39faf483192f360541a0cee0f87067ca6748d49- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ130880018
- Bitcoin block existence check
- https://blockstream.info/api/block/960481
Full record
Track page: Five Movements for String Quartet, Op. 5: No. 4, Sehr langsam · Machine-readable JSON-LD