ISRC DEN962200800
Verified recording
DEN962200800 is “12 Horn Duos, K. 487: No. 4, Polonaise” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x1c04135f52b3dbf594e702aa911d09c164b3edd21e1c568be08343198084d7a8 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/DEN962200800.
Recording identifiers
- ISRC
- DEN962200800
- Title
- 12 Horn Duos, K. 487: No. 4, Polonaise
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x1c04135f52b3dbf594e702aa911d09c164b3edd21e1c568be08343198084d7a8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:c6cbcad8618abc6d68e116bffadbc9969186fd73011e37452a9abb1fcd41e27e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962200800
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 12 Horn Duos, K. 487: No. 4, Polonaise · Machine-readable JSON-LD