ISRC DEF057201166
Verified recording
DEF057201166 is “Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xb30f4253f2a1143b2b8b1db1881411624b879bd6e014325d7729da9595be5076 and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057201166.
Recording identifiers
- ISRC
- DEF057201166
- Title
- Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xb30f4253f2a1143b2b8b1db1881411624b879bd6e014325d7729da9595be5076
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:2ae5c6b488e98a7998f64bff8ae4599e194028ec5501ec85c24eb5c9f5f8480b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057201166
- Bitcoin block existence check
- https://blockstream.info/api/block/960209
Full record
Track page: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio · Machine-readable JSON-LD