ISRC DEF058501135
Verified recording
DEF058501135 is “Piano Sonata No. 30 in E Major, Op. 109: IIIc. Var. 2. Leggiermente” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x23d543c842cafb0b050ea659c6e87fc6d2b0735cb4ce437c4f57979f089e4f59 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058501135.
Recording identifiers
- ISRC
- DEF058501135
- Title
- Piano Sonata No. 30 in E Major, Op. 109: IIIc. Var. 2. Leggiermente
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x23d543c842cafb0b050ea659c6e87fc6d2b0735cb4ce437c4f57979f089e4f59
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:facf2fac758ef33eda386712655b4abeb09e4edc3ae115334064531337ae306c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058501135
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 30 in E Major, Op. 109: IIIc. Var. 2. Leggiermente · Machine-readable JSON-LD