ISRC DEF057900691
Verified recording
DEF057900691 is “Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x24e579666c85387b77bfa87bf64b6b573fde91e75ccba92e127643935b7f9df3 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057900691.
Recording identifiers
- ISRC
- DEF057900691
- Title
- Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x24e579666c85387b77bfa87bf64b6b573fde91e75ccba92e127643935b7f9df3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:8e12387ef91f00b0862bcaeb4ab60eff9e29383040435618593a32709f45c56f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057900691
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 1 · Machine-readable JSON-LD