ISRC USSM10405499
Verified recording
USSM10405499 is “Boris Godunov: Opera in Four Acts With a Prologue: Act III, Scene 2: Polonaise - "I do not believe in your passion, sir"” by Modest Mussorgsky,
registered on the CopyrightChains blockchain with CopyrightID
0x9da1cc6b07d9dce19ca0e1e3b54848c1275f90a865a2606e7ecc2f33e9e73813 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405499.
Recording identifiers
- ISRC
- USSM10405499
- Title
- Boris Godunov: Opera in Four Acts With a Prologue: Act III, Scene 2: Polonaise - "I do not believe in your passion, sir"
- Artist
- Modest Mussorgsky
- CopyrightID (CopyrightChains transaction hash)
0x9da1cc6b07d9dce19ca0e1e3b54848c1275f90a865a2606e7ecc2f33e9e73813
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:6177c341b8cb61d7c6c087dd9930f1c957993880f585399aef96c164f671a802- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405499
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Boris Godunov: Opera in Four Acts With a Prologue: Act III, Scene 2: Polonaise - "I do not believe in your passion, sir" · Machine-readable JSON-LD