ISRC KRUM71100159
Verified recording
KRUM71100159 is “Preludes Op. 28 No. 21 In B Flat Major Cantabile” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xbf3a55ca4d1ce1ca8cff73d157788d5bca2682153f4c669a9d584041700064d0 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRUM71100159.
Recording identifiers
- ISRC
- KRUM71100159
- Title
- Preludes Op. 28 No. 21 In B Flat Major Cantabile
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xbf3a55ca4d1ce1ca8cff73d157788d5bca2682153f4c669a9d584041700064d0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:8667a5a3914b63dc6966a7a408be033691262cdf9fe41f17303b0c6e06874f92- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRUM71100159
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Preludes Op. 28 No. 21 In B Flat Major Cantabile · Machine-readable JSON-LD