ISRC QM4TX1706479
Verified recording
QM4TX1706479 is “Das Land des Lächelns, Act II: "Dein ist mein ganzes Herz!"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x8b5efa22951a23b3247b78e903d220fea7b76aaec1754d790b56d0170b6a39f2 and independently timestamped
in Bitcoin block 957020 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1706479.
Recording identifiers
- ISRC
- QM4TX1706479
- Title
- Das Land des Lächelns, Act II: "Dein ist mein ganzes Herz!"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x8b5efa22951a23b3247b78e903d220fea7b76aaec1754d790b56d0170b6a39f2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T09:18:01+00:00
- Bitcoin block
- 957020
- Canonical record hash
sha256:bca311072160f714536f5507ce90904fec2fc2ac12830b883a55256172641fb9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1706479
- Bitcoin block existence check
- https://blockstream.info/api/block/957020
Full record
Track page: Das Land des Lächelns, Act II: "Dein ist mein ganzes Herz!" · Machine-readable JSON-LD