ISRC DEF056201010
Verified recording
DEF056201010 is “Polonaise No. 3 in A Major, Op. 40 No. 1 "Military"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x168ef97a03b2ed934112ec810365f44ddc13ef6fb71407e3d92d68e0d68ac9c5 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/DEF056201010.
Recording identifiers
- ISRC
- DEF056201010
- Title
- Polonaise No. 3 in A Major, Op. 40 No. 1 "Military"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x168ef97a03b2ed934112ec810365f44ddc13ef6fb71407e3d92d68e0d68ac9c5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:1bbcef89194ac09b21235a1d4412a5a44509a9f22c3070a6180b81f3e87d12b7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056201010
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Polonaise No. 3 in A Major, Op. 40 No. 1 "Military" · Machine-readable JSON-LD