ISRC DEF059205270
Verified recording
DEF059205270 is “Slow Movement For String Quartet (1905)” by Anton Webern,
registered on the CopyrightChains blockchain with CopyrightID
0xbaf22da147a2f1b3fa5de5ea73e519db84693c3cd6656ca83a0c6df743450eb0 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/DEF059205270.
Recording identifiers
- ISRC
- DEF059205270
- Title
- Slow Movement For String Quartet (1905)
- Artist
- Anton Webern
- CopyrightID (CopyrightChains transaction hash)
0xbaf22da147a2f1b3fa5de5ea73e519db84693c3cd6656ca83a0c6df743450eb0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:af522249bf08561567de3e1a9244b02ddda4b6df6eb5ec023424ac00ee2cc45d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059205270
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: Slow Movement For String Quartet (1905) · Machine-readable JSON-LD