ISRC DEF059630004

Verified recording

DEF059630004 is “Variations on a Rococo Theme, Op. 33, TH 57: Variazione II: Tempo del Tema” by Pyotr Ilyich Tchaikovsky, registered on the CopyrightChains blockchain with CopyrightID 0x1f5416bfb9003f50d148dd30df4debafc06b6496d877ad3b20d8d7990b0b6df4 and independently timestamped in Bitcoin block 960138 on 2026-07-29. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059630004.

Recording identifiers

ISRC
DEF059630004
Title
Variations on a Rococo Theme, Op. 33, TH 57: Variazione II: Tempo del Tema
Artist
Pyotr Ilyich Tchaikovsky
CopyrightID (CopyrightChains transaction hash)
0x1f5416bfb9003f50d148dd30df4debafc06b6496d877ad3b20d8d7990b0b6df4

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34+00:00
Bitcoin block
960138
Canonical record hash
sha256:9e2ea061c69de8df1f9ab31bf78ce55c0f8f848f8da7b1c1f70c7b54e8cc4d27
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059630004
Bitcoin block existence check
https://blockstream.info/api/block/960138

Full record

Track page: Variations on a Rococo Theme, Op. 33, TH 57: Variazione II: Tempo del Tema · Machine-readable JSON-LD