ISRC NLA507300492
Verified recording
NLA507300492 is “24 Preludes, Op. 28: No. 21 in B-Flat Major. Cantabile” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x0a1dd12abba67af1c5e09bddd0f22db01f263cf9079dd52b5d245710386234fd 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/NLA507300492.
Recording identifiers
- ISRC
- NLA507300492
- Title
- 24 Preludes, Op. 28: No. 21 in B-Flat Major. Cantabile
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x0a1dd12abba67af1c5e09bddd0f22db01f263cf9079dd52b5d245710386234fd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:c81eddd3952c33d48fe4d8661946e043684fa5295aefd74532922d88556d2913- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300492
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 24 Preludes, Op. 28: No. 21 in B-Flat Major. Cantabile · Machine-readable JSON-LD