ISRC NLA507101031
Verified recording
NLA507101031 is “The London Sketchbook, K. 15a-ss (Orch. Smith): [Maestoso] in C Major, K. 15b” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xde5498f3a197b1733a721dcc62fb129c80eb602d2f15cab4e1dba8e5e90576f3 and independently timestamped
in Bitcoin block 960164 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101031.
Recording identifiers
- ISRC
- NLA507101031
- Title
- The London Sketchbook, K. 15a-ss (Orch. Smith): [Maestoso] in C Major, K. 15b
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xde5498f3a197b1733a721dcc62fb129c80eb602d2f15cab4e1dba8e5e90576f3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T23:23:05+00:00
- Bitcoin block
- 960164
- Canonical record hash
sha256:8d9115b2127b21bbbb04c4c52ac32bc418db1a108b805212d570cfebbf673bee- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101031
- Bitcoin block existence check
- https://blockstream.info/api/block/960164
Full record
Track page: The London Sketchbook, K. 15a-ss (Orch. Smith): [Maestoso] in C Major, K. 15b · Machine-readable JSON-LD