交響曲 第 2番 二短調, 作品 40: 2. Variation 1 (L’istesso tempo)

Recording by Sergei Prokofiev.

Recording identifiers

ISRC
JPG201417044
CopyrightID (CopyrightChains transaction hash)
0xaa04e6eae4bf383eb87f84c133de2821529ee8e46e95e3dc45f7bf1290f1d529
Copyright registration time
2026-07-07T02:53:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d1fbe10b7e892eeb464c8b6f0e6daeaf674c533ff93c7afb166418f8ed83e630

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.