ISRC DEF058904511
Verified recording
DEF058904511 is “Concerto for Piano and Orchestra: 1. ca. 110” by Witold Lutosławski,
registered on the CopyrightChains blockchain with CopyrightID
0x904f58d4f181cfb365b70d4c655cd134af2bd2d00fa22b7a69f228fdaf10d23c and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058904511.
Recording identifiers
- ISRC
- DEF058904511
- Title
- Concerto for Piano and Orchestra: 1. ca. 110
- Artist
- Witold Lutosławski
- CopyrightID (CopyrightChains transaction hash)
0x904f58d4f181cfb365b70d4c655cd134af2bd2d00fa22b7a69f228fdaf10d23c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:569cb5dffd34618a21bae6a43ff29d326c06df2b5be927082cf406490c998e23- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058904511
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Concerto for Piano and Orchestra: 1. ca. 110 · Machine-readable JSON-LD