ISRC QMBZ91713291
Verified recording
QMBZ91713291 is “Monologue No. 4 for Saxophone: I. Andante espressivo” by Erland von Koch,
registered on the CopyrightChains blockchain with CopyrightID
0xa9682e9a6260f192953e31fa6bf70a982b30ec83e51a2734c5b8253a4a06f22c and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91713291.
Recording identifiers
- ISRC
- QMBZ91713291
- Title
- Monologue No. 4 for Saxophone: I. Andante espressivo
- Artist
- Erland von Koch
- CopyrightID (CopyrightChains transaction hash)
0xa9682e9a6260f192953e31fa6bf70a982b30ec83e51a2734c5b8253a4a06f22c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:e5dec69bf0ddfe3900c786ca9d25ef6e4b5534ebf8ae2c41b8e55a6fa5798ef5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91713291
- Bitcoin block existence check
- https://blockstream.info/api/block/953513
Full record
Track page: Monologue No. 4 for Saxophone: I. Andante espressivo · Machine-readable JSON-LD