I Heard a Rumour

Recording by Brazil XXI.

Recording identifiers

ISRC
ARF412300263
CopyrightID (CopyrightChains transaction hash)
0xadc35d529b67ffed0163508a1be7edad0156c5df85c4bd9b7be5073c2053cda2
Copyright registration time
2026-06-04T09:47:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:4ca798eaee4d4a005c726866ab10c5628a8d466d8f4accdf5c66329e27d8076e

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.