ISRC GBAYC2200142
Verified recording
GBAYC2200142 is “Karłowicz: 6 Songs, Op. 1: No. 6, Smutną jest dusza moja” by Mieczysław Karłowicz,
registered on the CopyrightChains blockchain with CopyrightID
0x818fd0504f07f22bacf346ab7026a211699c1b06f9065f996edf04652db25838 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2200142.
Recording identifiers
- ISRC
- GBAYC2200142
- Title
- Karłowicz: 6 Songs, Op. 1: No. 6, Smutną jest dusza moja
- Artist
- Mieczysław Karłowicz
- CopyrightID (CopyrightChains transaction hash)
0x818fd0504f07f22bacf346ab7026a211699c1b06f9065f996edf04652db25838
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:ab8a5e8f15e66a605151b72ea9f4b62720ebbaee6956c22027f53977b004fb01- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2200142
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Karłowicz: 6 Songs, Op. 1: No. 6, Smutną jest dusza moja · Machine-readable JSON-LD