O Travesseiro

Recording by Márcio Greyck.

Recording identifiers

ISRC
BRC4M1902613
CopyrightID (CopyrightChains transaction hash)
0xccbd23c47ed1815bc61ed2f45ec0b73dfbbaff25ef0013ea1466900b518582f8
Copyright registration time
2026-06-06T06:40:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:f6368ce3a9924cd0c516795ea0de6bd5fab2607cd33670e59e30a28df6458bd7

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.