ISRC DEF059404821
Verified recording
DEF059404821 is “Symphony, Op. 21: I. Ruhig schreitend” by Anton Webern,
registered on the CopyrightChains blockchain with CopyrightID
0xb37e5cbbce89ea5b3b185821ffe6a24546e1aa213ae8991088d0441d704f74d8 and independently timestamped
in Bitcoin block 960218 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404821.
Recording identifiers
- ISRC
- DEF059404821
- Title
- Symphony, Op. 21: I. Ruhig schreitend
- Artist
- Anton Webern
- CopyrightID (CopyrightChains transaction hash)
0xb37e5cbbce89ea5b3b185821ffe6a24546e1aa213ae8991088d0441d704f74d8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:57:05+00:00
- Bitcoin block
- 960218
- Canonical record hash
sha256:51f7b40e4154e1e3a40cd5004b53ee680659ed6baca765827121ee8fdee6b36c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404821
- Bitcoin block existence check
- https://blockstream.info/api/block/960218
Full record
Track page: Symphony, Op. 21: I. Ruhig schreitend · Machine-readable JSON-LD