ISRC QMZ621402857
Verified recording
QMZ621402857 is “Bardenklänge, Op. 13: Romanze - Moderato, adagio)” by Johann Kaspar Mertz,
registered on the CopyrightChains blockchain with CopyrightID
0x5def52c7c5cd6483887654733938f64f50b7df314ac091e97ec231456da1587e 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/QMZ621402857.
Recording identifiers
- ISRC
- QMZ621402857
- Title
- Bardenklänge, Op. 13: Romanze - Moderato, adagio)
- Artist
- Johann Kaspar Mertz
- CopyrightID (CopyrightChains transaction hash)
0x5def52c7c5cd6483887654733938f64f50b7df314ac091e97ec231456da1587e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:bc131921b0a4e64297e7668448d9469ddf559dfdadda66cbedfa24b628286bb4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZ621402857
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Bardenklänge, Op. 13: Romanze - Moderato, adagio) · Machine-readable JSON-LD