ISRC USSM10018923
Verified recording
USSM10018923 is “III. Nocturne from String Quartet No. 2 in D Major” by Alexander Borodin,
registered on the CopyrightChains blockchain with CopyrightID
0x3d8ecaf600b2acef03f4be78a58ab32b12bcc6a74bacaa605dd3da4ba6b56068 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10018923.
Recording identifiers
- ISRC
- USSM10018923
- Title
- III. Nocturne from String Quartet No. 2 in D Major
- Artist
- Alexander Borodin
- CopyrightID (CopyrightChains transaction hash)
0x3d8ecaf600b2acef03f4be78a58ab32b12bcc6a74bacaa605dd3da4ba6b56068
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:4350c9ae5a60e1f67cf8c5a1d1f269b981c42a0d7e024b01f8e81208e48fa3c6- Verification API (seven-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10018923
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: III. Nocturne from String Quartet No. 2 in D Major · Machine-readable JSON-LD