ISRC NLA507301167
Verified recording
NLA507301167 is “12 Horn Duos, K. 487/496a: No. 1, Allegro” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x28791fde043f074c7547c350d04f35836055ed3b53d3d90118614287b5b46319 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507301167.
Recording identifiers
- ISRC
- NLA507301167
- Title
- 12 Horn Duos, K. 487/496a: No. 1, Allegro
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x28791fde043f074c7547c350d04f35836055ed3b53d3d90118614287b5b46319
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:b628c1201b668cbae4822a9ebb1bc68a08425e2dbcc813ef800dc1458634e822- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507301167
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: 12 Horn Duos, K. 487/496a: No. 1, Allegro · Machine-readable JSON-LD