ISRC PLB351319604
Verified recording
PLB351319604 is “Symphony No. 1: I. Allegro giusto” by Witold Lutosławski,
registered on the CopyrightChains blockchain with CopyrightID
0xb406f332fbbe7bfd95a7435bf0ec0fe9b14fe601f1497e07b16be87ecb700e52 and independently timestamped
in Bitcoin block 960422 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB351319604.
Recording identifiers
- ISRC
- PLB351319604
- Title
- Symphony No. 1: I. Allegro giusto
- Artist
- Witold Lutosławski
- CopyrightID (CopyrightChains transaction hash)
0xb406f332fbbe7bfd95a7435bf0ec0fe9b14fe601f1497e07b16be87ecb700e52
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:27:29+00:00
- Bitcoin block
- 960422
- Canonical record hash
sha256:4bc14810ba0587971f466b30cd2aafcc3031ce04016bd87590cc665e2bbadae7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB351319604
- Bitcoin block existence check
- https://blockstream.info/api/block/960422
Full record
Track page: Symphony No. 1: I. Allegro giusto · Machine-readable JSON-LD