ISRC DEF056507121
Verified recording
DEF056507121 is “12 Études, Op. 10: No. 3 in E Major "Tristesse" - Pt. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb2e9d7e5d16e9bfd6b6560f499a90cba99af27eaa1d1eee787538d966f75ad22 and independently timestamped
in Bitcoin block 960264 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507121.
Recording identifiers
- ISRC
- DEF056507121
- Title
- 12 Études, Op. 10: No. 3 in E Major "Tristesse" - Pt. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb2e9d7e5d16e9bfd6b6560f499a90cba99af27eaa1d1eee787538d966f75ad22
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:36:16+00:00
- Bitcoin block
- 960264
- Canonical record hash
sha256:0ff5d20329e241c3761c6af2f12cd3b3602a5e80c5bab2e26abd5370634837dc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056507121
- Bitcoin block existence check
- https://blockstream.info/api/block/960264
Full record
Track page: 12 Études, Op. 10: No. 3 in E Major "Tristesse" - Pt. 1 · Machine-readable JSON-LD