ISRC DEF056500531
Verified recording
DEF056500531 is “Nocturne No. 8 In D Flat, Op. 27 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x7e49b19ac7fcd32d34e82f2668a9335946482d7592418c526224c76d01f8ca81 and independently timestamped
in Bitcoin block 960441 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500531.
Recording identifiers
- ISRC
- DEF056500531
- Title
- Nocturne No. 8 In D Flat, Op. 27 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x7e49b19ac7fcd32d34e82f2668a9335946482d7592418c526224c76d01f8ca81
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T17:29:52+00:00
- Bitcoin block
- 960441
- Canonical record hash
sha256:6e5bb3c741778f7e62199c4b9114c8d6d22acb5d3291f45fe738b1ce258ee994- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500531
- Bitcoin block existence check
- https://blockstream.info/api/block/960441
Full record
Track page: Nocturne No. 8 In D Flat, Op. 27 No. 2 · Machine-readable JSON-LD