ISRC NLA507101039
Verified recording
NLA507101039 is “The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse. Allegro] in A Major, K. 15l” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x545ce79c12ae63a0dfc41092c475dac04a62626f46df05186836644bd1300f12 and independently timestamped
in Bitcoin block 960321 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101039.
Recording identifiers
- ISRC
- NLA507101039
- Title
- The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse. Allegro] in A Major, K. 15l
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x545ce79c12ae63a0dfc41092c475dac04a62626f46df05186836644bd1300f12
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T22:27:30+00:00
- Bitcoin block
- 960321
- Canonical record hash
sha256:ba555cac97e4ca95d78b92a534b3b4c0ed36f81842c21c2ba256c7a26d81e31b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101039
- Bitcoin block existence check
- https://blockstream.info/api/block/960321
Full record
Track page: The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse. Allegro] in A Major, K. 15l · Machine-readable JSON-LD