ISRC QMBZ91713292
Verified recording
QMBZ91713292 is “Monologue No. 4 for Saxophone: II. Allegro molto vivace” by Erland von Koch,
registered on the CopyrightChains blockchain with CopyrightID
0x0e12235e13fb52f1fdb214b7013bd230f713f2fc915a5dc6e3143b1b095e34b4 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/QMBZ91713292.
Recording identifiers
- ISRC
- QMBZ91713292
- Title
- Monologue No. 4 for Saxophone: II. Allegro molto vivace
- Artist
- Erland von Koch
- CopyrightID (CopyrightChains transaction hash)
0x0e12235e13fb52f1fdb214b7013bd230f713f2fc915a5dc6e3143b1b095e34b4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:ce82ca6542a0a88955a05f73d4018a035c649ef02d6c7cb6df3f2207bfb0728b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91713292
- Bitcoin block existence check
- https://blockstream.info/api/block/953513
Full record
Track page: Monologue No. 4 for Saxophone: II. Allegro molto vivace · Machine-readable JSON-LD