ISRC NLA507708542
Verified recording
NLA507708542 is “Mazurka No. 44 in G Op. 67 No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd5a710900b713bde3594b555f2d03fcc50895d3c7a7e15a43a59c77da64f9515 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708542.
Recording identifiers
- ISRC
- NLA507708542
- Title
- Mazurka No. 44 in G Op. 67 No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd5a710900b713bde3594b555f2d03fcc50895d3c7a7e15a43a59c77da64f9515
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:d44fc7c12e1f4369b2b0688c96300a2be7b7251739632a5e78ef666733dda2c6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708542
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Mazurka No. 44 in G Op. 67 No. 1 · Machine-readable JSON-LD