ISRC DEF056500810
Verified recording
DEF056500810 is “Waltz No. 15 in E Major, Op. posth.: Tempo di Valse” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xef385bcdff17e37cec8f437af0f56c2ceb1bf2ec600ac63c02ff98fa3cc1f525 and independently timestamped
in Bitcoin block 960429 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500810.
Recording identifiers
- ISRC
- DEF056500810
- Title
- Waltz No. 15 in E Major, Op. posth.: Tempo di Valse
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xef385bcdff17e37cec8f437af0f56c2ceb1bf2ec600ac63c02ff98fa3cc1f525
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T16:07:24+00:00
- Bitcoin block
- 960429
- Canonical record hash
sha256:fa9b835490f68c3217dd00aa25e6d2abbd6a4cc4bc8803f97dce4c66ba286442- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500810
- Bitcoin block existence check
- https://blockstream.info/api/block/960429
Full record
Track page: Waltz No. 15 in E Major, Op. posth.: Tempo di Valse · Machine-readable JSON-LD