ISRC DEF057900692
Verified recording
DEF057900692 is “Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb5616967b6575abf8f5c402a73d4182e51ffd4f87e469131af2153c13a1fd1d1 and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057900692.
Recording identifiers
- ISRC
- DEF057900692
- Title
- Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb5616967b6575abf8f5c402a73d4182e51ffd4f87e469131af2153c13a1fd1d1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:3736e2e938baff1e20cb0cebb05e41a37e242526e00958da78d1888cec043dc7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057900692
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 2 · Machine-readable JSON-LD