ISRC PLB381300253
Verified recording
PLB381300253 is “Rok i Bieda” by Witold Lutosławski,
registered on the CopyrightChains blockchain with CopyrightID
0x7bb7ee70bb763f9838c1bbac02ed22ed45d342d8f92dcae8a8f0a4e62bf425ef and independently timestamped
in Bitcoin block 960220 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB381300253.
Recording identifiers
- ISRC
- PLB381300253
- Title
- Rok i Bieda
- Artist
- Witold Lutosławski
- CopyrightID (CopyrightChains transaction hash)
0x7bb7ee70bb763f9838c1bbac02ed22ed45d342d8f92dcae8a8f0a4e62bf425ef
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T07:28:30+00:00
- Bitcoin block
- 960220
- Canonical record hash
sha256:d7e2f0a2cee1e5494c024db5e1a2be005ff0490c7aed4418f4fd8e9a21ec7c13- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB381300253
- Bitcoin block existence check
- https://blockstream.info/api/block/960220