ISRC USSM19400688
Verified recording
USSM19400688 is “Sonata for Solo Viola: I. Hora lunga” by György Ligeti,
registered on the CopyrightChains blockchain with CopyrightID
0x16028f2c26c0ceeceba3fdf9b3a6f293c305ad6e22968a6737258bb7e5790b57 and independently timestamped
in Bitcoin block 960210 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19400688.
Recording identifiers
- ISRC
- USSM19400688
- Title
- Sonata for Solo Viola: I. Hora lunga
- Artist
- György Ligeti
- CopyrightID (CopyrightChains transaction hash)
0x16028f2c26c0ceeceba3fdf9b3a6f293c305ad6e22968a6737258bb7e5790b57
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:21:45+00:00
- Bitcoin block
- 960210
- Canonical record hash
sha256:416b0e32ce63a6b7d7610b07973b4503296845988cdc8c293d7c3833f257fd8b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19400688
- Bitcoin block existence check
- https://blockstream.info/api/block/960210
Full record
Track page: Sonata for Solo Viola: I. Hora lunga · Machine-readable JSON-LD