ISRC GBLWD0701103
Verified recording
GBLWD0701103 is “The Makropulos Case, JW 1/10, Act I: Daddy, she really is wonderful (Vitek, Gregor)” by Leoš Janáček,
registered on the CopyrightChains blockchain with CopyrightID
0x211e19f59f66ab25bef680d2cef188a8ff8beceeefbf5f38474c4fff1ee1e196 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0701103.
Recording identifiers
- ISRC
- GBLWD0701103
- Title
- The Makropulos Case, JW 1/10, Act I: Daddy, she really is wonderful (Vitek, Gregor)
- Artist
- Leoš Janáček
- CopyrightID (CopyrightChains transaction hash)
0x211e19f59f66ab25bef680d2cef188a8ff8beceeefbf5f38474c4fff1ee1e196
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:3bfd7f1ee15048c5c14f70fb1ca0c3ee6349eb3bd35b7ecd25f8144f9b31cb71- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0701103
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: The Makropulos Case, JW 1/10, Act I: Daddy, she really is wonderful (Vitek, Gregor) · Machine-readable JSON-LD