ISRC DEF057900693
Verified recording
DEF057900693 is “Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x19d066be6ccc142627655a55149012d12f5be13f7782453c566a904d521bf835 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/DEF057900693.
Recording identifiers
- ISRC
- DEF057900693
- Title
- Polonaise No. 3 in A, Op. 40 No. 1 "Military": Allegro con brio - Pt. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x19d066be6ccc142627655a55149012d12f5be13f7782453c566a904d521bf835
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:9efa9bd4703c6f94df185787adf4d63ed0f03bac7a13a92b76e0ae266c0c0fcf- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057900693
- 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. 3 · Machine-readable JSON-LD