Колыбельная песня

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
BGA262237936
CopyrightID (CopyrightChains transaction hash)
0xc28dbc31307c4becd41da012310c9337d1540dd4de3367d370f82929970b5b3b
Copyright registration time
2026-07-30T08:00:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T08:30:10Z
Bitcoin block
960229
Canonical record hash
sha256:d0bfc0967c64b148329eddbe54fe08343e00da74e5625e98440f5e5b3de2da85

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.