ISRC GBJ2F1010736
Verified recording
GBJ2F1010736 is “The Merry Widow: Act I, "Und jetzt, meine Herrschaften"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x42559e0d3dfbc086a4da456ed42a91f6e88c34c5cb5e7396ebd582e3e0525258 and independently timestamped
in Bitcoin block 960291 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010736.
Recording identifiers
- ISRC
- GBJ2F1010736
- Title
- The Merry Widow: Act I, "Und jetzt, meine Herrschaften"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x42559e0d3dfbc086a4da456ed42a91f6e88c34c5cb5e7396ebd582e3e0525258
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T18:23:33+00:00
- Bitcoin block
- 960291
- Canonical record hash
sha256:fd68f67be498189e53ec5b301138ea973d06b8d0f8a37d932e77386c33269757- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010736
- Bitcoin block existence check
- https://blockstream.info/api/block/960291
Full record
Track page: The Merry Widow: Act I, "Und jetzt, meine Herrschaften" · Machine-readable JSON-LD