Amanhã, Ninguém Sabe

Recording by Chico Buarque.

Recording identifiers

ISRC
BRSGL6600007
CopyrightID (CopyrightChains transaction hash)
0xbf534bd4a0f211b78acb0f0cf9ef1666758a9deb8c5c1e119d04a30e29ef3d94
Copyright registration time
2026-06-22T02:55:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:70d4a3a73095dfbca7309794228f7a9b57a39041800bc9525843f7e6f4097fdc

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.