Sapporo - Mixed

Recording by Spencer Brown.

Recording identifiers

ISRC
GBEWA1900062
CopyrightID (CopyrightChains transaction hash)
0x63e7b1a0cfcc3c8b3ef93d13c8fcfdcf705c06cf4e730af5e8f20c547e8f1515
Copyright registration time
2026-06-20T04:04:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:b255cb3883bfd5713b64221965240cc44c39e7fdd9c47b063c4e074d56fc048a

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.