The Sabbath

Recording by Akihiko Matsumoto.

Recording identifiers

ISRC
JPPH09803030
CopyrightID (CopyrightChains transaction hash)
0xdfd6ba5eba10771bf1e1fac14f475592134f363f2202bd27f37eea4695fa32a9
Copyright registration time
2026-07-07T07:48:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5e43e631f8a259bfd6d28c1eb2354c3d246fda3119f917d691b4f769a9fc5de9

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.