ISRC NLA507101030
Verified recording
NLA507101030 is “The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse] in F Major, K. 15x” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x25c6577ddad6739e34a778ba2c61f45776da9b7e0d6438dc6708127fb33aa8cc and independently timestamped
in Bitcoin block 960160 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101030.
Recording identifiers
- ISRC
- NLA507101030
- Title
- The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse] in F Major, K. 15x
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x25c6577ddad6739e34a778ba2c61f45776da9b7e0d6438dc6708127fb33aa8cc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T22:48:59+00:00
- Bitcoin block
- 960160
- Canonical record hash
sha256:9bb0a92ffbca63bc142f85b3a4962d7feff3c6e564b981a8add0f5479f27848a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101030
- Bitcoin block existence check
- https://blockstream.info/api/block/960160
Full record
Track page: The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse] in F Major, K. 15x · Machine-readable JSON-LD