ISRC USSM10405472
Verified recording
USSM10405472 is “Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2, "Why are you so pensive, comrade?"” by Modest Mussorgsky,
registered on the CopyrightChains blockchain with CopyrightID
0x439b8ddb3bb2230f0a5eee3f0c430675fc93c93a2913fdb6dc63d1614d125597 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/USSM10405472.
Recording identifiers
- ISRC
- USSM10405472
- Title
- Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2, "Why are you so pensive, comrade?"
- Artist
- Modest Mussorgsky
- CopyrightID (CopyrightChains transaction hash)
0x439b8ddb3bb2230f0a5eee3f0c430675fc93c93a2913fdb6dc63d1614d125597
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:a2f5d748c7abf540b627bc85550d94504ebe6cc6758fa6769cce9347d8fe8174- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405472
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Boris Godunov: Opera in Four Acts With a Prologue: Act I, Scene 2, "Why are you so pensive, comrade?" · Machine-readable JSON-LD