ISRC DEF056500650

Verified recording

DEF056500650 is “Mazurka No. 5 in B-Flat Major, Op. 7 No. 1: Vivace” by Frédéric Chopin, registered on the CopyrightChains blockchain with CopyrightID 0x1f56014d807dbd86e8ec674eb24fa06c6acebaeac4a2fb70ebe2c073c04d72fa and independently timestamped in Bitcoin block 960240 on 2026-07-30. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500650.

Recording identifiers

ISRC
DEF056500650
Title
Mazurka No. 5 in B-Flat Major, Op. 7 No. 1: Vivace
Artist
Frédéric Chopin
CopyrightID (CopyrightChains transaction hash)
0x1f56014d807dbd86e8ec674eb24fa06c6acebaeac4a2fb70ebe2c073c04d72fa

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-30T09:57:33+00:00
Bitcoin block
960240
Canonical record hash
sha256:4b6357540aab72396d80a761b62e94fbc810295143bcaec6967a1be86db7d32b
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500650
Bitcoin block existence check
https://blockstream.info/api/block/960240

Full record

Track page: Mazurka No. 5 in B-Flat Major, Op. 7 No. 1: Vivace · Machine-readable JSON-LD