ISRC QM7281535377
Verified recording
QM7281535377 is “Horn Concerto in D Major, K.412: II. Rondo” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x273cc45630db06b9d7d1182d7f7d5057b1f96f5aa8611ab3eb261fe558cf265e 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/QM7281535377.
Recording identifiers
- ISRC
- QM7281535377
- Title
- Horn Concerto in D Major, K.412: II. Rondo
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x273cc45630db06b9d7d1182d7f7d5057b1f96f5aa8611ab3eb261fe558cf265e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:7d993980c2a4679c45f601322e4a08a516ea3d091e4401a773e47433512c98aa- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281535377
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Horn Concerto in D Major, K.412: II. Rondo · Machine-readable JSON-LD