ISRC GBAYC2200141
Verified recording
GBAYC2200141 is “Karłowicz: 10 Songs, Op. 3: No. 4, Na spokojnym, ciemnym morzu” by Mieczysław Karłowicz,
registered on the CopyrightChains blockchain with CopyrightID
0xb804a66eebe86475b9636ac6988c2195c565a3f3764c4ae2148f482151f74e7a and independently timestamped
in Bitcoin block 960309 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2200141.
Recording identifiers
- ISRC
- GBAYC2200141
- Title
- Karłowicz: 10 Songs, Op. 3: No. 4, Na spokojnym, ciemnym morzu
- Artist
- Mieczysław Karłowicz
- CopyrightID (CopyrightChains transaction hash)
0xb804a66eebe86475b9636ac6988c2195c565a3f3764c4ae2148f482151f74e7a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T20:35:49+00:00
- Bitcoin block
- 960309
- Canonical record hash
sha256:fd3e54c0b55e06772bb54c9e98e5ea76f60988abec0b0318f1a7bdcfbdaf8f80- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2200141
- Bitcoin block existence check
- https://blockstream.info/api/block/960309
Full record
Track page: Karłowicz: 10 Songs, Op. 3: No. 4, Na spokojnym, ciemnym morzu · Machine-readable JSON-LD