歌劇「マドンナの宝石」第1間奏曲

Recording by 竹内郁子.

Recording identifiers

ISRC
JPTO09415960
CopyrightID (CopyrightChains transaction hash)
0x2f3f9d4ede446b503eb2421e8841e06fc0937e1914bb7b0b5b72b18128b1fbde
Copyright registration time
2026-07-07T18:42:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:77697c293a8e60f1a4ed3354d3db2976057675a573aceffe77f7e4c1463a1515

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.