ISRC DEF058104714
Verified recording
DEF058104714 is “Chamber Concerto for 13 Instrumentalists: IV. Presto” by György Ligeti,
registered on the CopyrightChains blockchain with CopyrightID
0xe9c15be544da2b519f9f9fee24fa116d36fe0b3f329172ff045e4b02b5c76a03 and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104714.
Recording identifiers
- ISRC
- DEF058104714
- Title
- Chamber Concerto for 13 Instrumentalists: IV. Presto
- Artist
- György Ligeti
- CopyrightID (CopyrightChains transaction hash)
0xe9c15be544da2b519f9f9fee24fa116d36fe0b3f329172ff045e4b02b5c76a03
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:84e91559737daf81a0d20d30967c830d99b90fb605ed1a4e55c3c9b5d5cd2c28- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104714
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Chamber Concerto for 13 Instrumentalists: IV. Presto · Machine-readable JSON-LD