ISRC FR10S1700844
Verified recording
FR10S1700844 is “Fünf Sätze für Streichquartett, Op. 5: IV. Sefr Langsam” by Anton Webern,
registered on the CopyrightChains blockchain with CopyrightID
0x80266a65010446c882f83a1b968ff58680f47961663dbe22299b6361b884c304 and independently timestamped
in Bitcoin block 960494 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1700844.
Recording identifiers
- ISRC
- FR10S1700844
- Title
- Fünf Sätze für Streichquartett, Op. 5: IV. Sefr Langsam
- Artist
- Anton Webern
- CopyrightID (CopyrightChains transaction hash)
0x80266a65010446c882f83a1b968ff58680f47961663dbe22299b6361b884c304
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T01:44:32+00:00
- Bitcoin block
- 960494
- Canonical record hash
sha256:ab3128e3df26f668d1ea0f84f9c298da1d203feb70618a2dd1d95a4f415d9a66- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1700844
- Bitcoin block existence check
- https://blockstream.info/api/block/960494
Full record
Track page: Fünf Sätze für Streichquartett, Op. 5: IV. Sefr Langsam · Machine-readable JSON-LD