ISRC DEF056500511
Verified recording
DEF056500511 is “Nocturne No. 2 In E-Flat Major, Op. 9 No. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x5cdf6f58fc79c0a91d6c565efde7f4b9e72ed73697f8500a9c50e796febf07be and independently timestamped
in Bitcoin block 960344 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500511.
Recording identifiers
- ISRC
- DEF056500511
- Title
- Nocturne No. 2 In E-Flat Major, Op. 9 No. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x5cdf6f58fc79c0a91d6c565efde7f4b9e72ed73697f8500a9c50e796febf07be
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T04:14:58+00:00
- Bitcoin block
- 960344
- Canonical record hash
sha256:da19cce952586cf2b68e94753c80d4bf0ef38f2d4a93cb248a896b0015ea69f5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500511
- Bitcoin block existence check
- https://blockstream.info/api/block/960344
Full record
Track page: Nocturne No. 2 In E-Flat Major, Op. 9 No. 2 · Machine-readable JSON-LD