ISRC DEF059404822
Verified recording
DEF059404822 is “Symphony, Op. 21: II. Variationen” by Anton Webern,
registered on the CopyrightChains blockchain with CopyrightID
0x9513d4a13e5804b9c1a25d04b15fa1bb22f4957edf07671d996f12743a314776 and independently timestamped
in Bitcoin block 960212 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404822.
Recording identifiers
- ISRC
- DEF059404822
- Title
- Symphony, Op. 21: II. Variationen
- Artist
- Anton Webern
- CopyrightID (CopyrightChains transaction hash)
0x9513d4a13e5804b9c1a25d04b15fa1bb22f4957edf07671d996f12743a314776
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:43:45+00:00
- Bitcoin block
- 960212
- Canonical record hash
sha256:f21351c015756c0e467b9c76216637f599c52224b53f1bbef340084d1e1dac7a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404822
- Bitcoin block existence check
- https://blockstream.info/api/block/960212
Full record
Track page: Symphony, Op. 21: II. Variationen · Machine-readable JSON-LD