La Bohème: Act I

Recording by Jussi Björling.

Recording identifiers

ISRC
GBMNA0813694
CopyrightID (CopyrightChains transaction hash)
0x5d268f57fd400d2b9ff644e5ff975d4cb427803727acc8d127cf268b134564fb
Copyright registration time
2026-07-07T08:19:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:28f7f7b6a7e9197a94c601df82332fb87d80c043277f7c08c388836fd3a1c26a

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.