ISRC DEF059603520

Verified recording

DEF059603520 is “Porgy and Bess: Summertime / A Woman Is a Sometime thing” by George Gershwin, registered on the CopyrightChains blockchain with CopyrightID 0x716c9a26f865a650f94348cc18d359be76ce0cf8c5c08b5736720956f8884b75 and independently timestamped in Bitcoin block 960334 on 2026-07-31. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059603520.

Recording identifiers

ISRC
DEF059603520
Title
Porgy and Bess: Summertime / A Woman Is a Sometime thing
Artist
George Gershwin
CopyrightID (CopyrightChains transaction hash)
0x716c9a26f865a650f94348cc18d359be76ce0cf8c5c08b5736720956f8884b75

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-31T02:19:15+00:00
Bitcoin block
960334
Canonical record hash
sha256:b08565b6197406a2b9da08b449437dbb79f91c1a5e147eaa1440bdc2ccfc53d6
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059603520
Bitcoin block existence check
https://blockstream.info/api/block/960334

Full record

Track page: Porgy and Bess: Summertime / A Woman Is a Sometime thing · Machine-readable JSON-LD