ISRC NLA507101047
Verified recording
NLA507101047 is “The London Sketchbook, K. 15a-ss (Orch. Smith): [March. Andantino] in B-Flat Major, K. 15ii” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x8cbffef5731affd9ca7f869d49c35ee844991f1ef448c4df8169e08e0b9da81d and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101047.
Recording identifiers
- ISRC
- NLA507101047
- Title
- The London Sketchbook, K. 15a-ss (Orch. Smith): [March. Andantino] in B-Flat Major, K. 15ii
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x8cbffef5731affd9ca7f869d49c35ee844991f1ef448c4df8169e08e0b9da81d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:579b6f8f8c27d00cc01742002024237d1021447715732dce4878b741569eb61a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101047
- Bitcoin block existence check
- https://blockstream.info/api/block/960459
Full record
Track page: The London Sketchbook, K. 15a-ss (Orch. Smith): [March. Andantino] in B-Flat Major, K. 15ii · Machine-readable JSON-LD