ISRC NLA507708548
Verified recording
NLA507708548 is “Mazurka No. 50 in F Op 68 No. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x865b76be6b7551824fc5415270c29b4a5895e095acd3218e909077c6887032d3 and independently timestamped
in Bitcoin block 957145 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708548.
Recording identifiers
- ISRC
- NLA507708548
- Title
- Mazurka No. 50 in F Op 68 No. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x865b76be6b7551824fc5415270c29b4a5895e095acd3218e909077c6887032d3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T08:56:20+00:00
- Bitcoin block
- 957145
- Canonical record hash
sha256:2056685b646aecdca3b6d2ea8f704327bd7d5af473af28bac16f636fb0117008- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507708548
- Bitcoin block existence check
- https://blockstream.info/api/block/957145
Full record
Track page: Mazurka No. 50 in F Op 68 No. 3 · Machine-readable JSON-LD