ISRC DEF056500750
Verified recording
DEF056500750 is “Waltz No. 2 in A-Flat Major, Op. 34 No. 1 "Valse brillante": Vivace” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x26b5e086fd7672348a93d2dabc90aefac34fdbbd9637797060e0eb98db70bff1 and independently timestamped
in Bitcoin block 960348 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500750.
Recording identifiers
- ISRC
- DEF056500750
- Title
- Waltz No. 2 in A-Flat Major, Op. 34 No. 1 "Valse brillante": Vivace
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x26b5e086fd7672348a93d2dabc90aefac34fdbbd9637797060e0eb98db70bff1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:17:02+00:00
- Bitcoin block
- 960348
- Canonical record hash
sha256:f0abdefe96b9d722b579aff87d970410356188f9f315b37ab82fa09e5870d01b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500750
- Bitcoin block existence check
- https://blockstream.info/api/block/960348
Full record
Track page: Waltz No. 2 in A-Flat Major, Op. 34 No. 1 "Valse brillante": Vivace · Machine-readable JSON-LD