ISRC DEN961305011
Verified recording
DEN961305011 is “Concerto for Piano and Orchestra: I. Dotted Quarter Note = 110 - Quarter Note = 70” by Witold Lutosławski,
registered on the CopyrightChains blockchain with CopyrightID
0x1bbb53d634f367d37d73bc11ba17490a1b945d17d3fd91c5733ca90da6c4fbf6 and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961305011.
Recording identifiers
- ISRC
- DEN961305011
- Title
- Concerto for Piano and Orchestra: I. Dotted Quarter Note = 110 - Quarter Note = 70
- Artist
- Witold Lutosławski
- CopyrightID (CopyrightChains transaction hash)
0x1bbb53d634f367d37d73bc11ba17490a1b945d17d3fd91c5733ca90da6c4fbf6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:d7c819b7b26283501d1e73f30e41f544b8ab7676f9f70d0296474d5509b408f5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961305011
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: Concerto for Piano and Orchestra: I. Dotted Quarter Note = 110 - Quarter Note = 70 · Machine-readable JSON-LD