O Travesseiro

Recording by Márcio Greyck.

Recording identifiers

ISRC
BRSME7200101
CopyrightID (CopyrightChains transaction hash)
0x17ee1614cfd871818250994772f7769ee5299c4f5efa93d7e718e0ac26f35e66
Copyright registration time
2026-06-21T11:12:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:d3acd239629082b23454545f2c378bdba5b5c119f2743395f3cfe15ac4fc63d3

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.