ISRC GBAYC2200147
Verified recording
GBAYC2200147 is “Karłowicz: 10 Songs, Op. 3: No. 9, Po szerokiem, po szerokiem morzu” by Mieczysław Karłowicz,
registered on the CopyrightChains blockchain with CopyrightID
0xc95a5f130a82fb0a545b38afcd67d2629fbed4e3181cf3840e7c20e9fcd749f1 and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2200147.
Recording identifiers
- ISRC
- GBAYC2200147
- Title
- Karłowicz: 10 Songs, Op. 3: No. 9, Po szerokiem, po szerokiem morzu
- Artist
- Mieczysław Karłowicz
- CopyrightID (CopyrightChains transaction hash)
0xc95a5f130a82fb0a545b38afcd67d2629fbed4e3181cf3840e7c20e9fcd749f1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:37db5a908f2952652783842837be307cfac3bceefaf2c82a2eaec7656570400c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2200147
- Bitcoin block existence check
- https://blockstream.info/api/block/960459
Full record
Track page: Karłowicz: 10 Songs, Op. 3: No. 9, Po szerokiem, po szerokiem morzu · Machine-readable JSON-LD