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