A Capella

Recording by Magdalena Matthey.

Recording identifiers

ISRC
ES71G1614534
CopyrightID (CopyrightChains transaction hash)
0xb8c547d6b81d5112c3e5221b05ab375eea2722017d0ffe06be144d4b3149bb28
Copyright registration time
2026-07-29T14:25:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T15:22:21Z
Bitcoin block
960121
Canonical record hash
sha256:73b7f65a1ce4563f4543d543e72cbdf1a385314f234a2a81112bb788c8f4eeee

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.