Á Portas Fechadas

Recording identifiers

ISRC

BRMCA8800007

Release date of the album this recording appears on

2001-01-08

CopyrightID (CopyrightChains transaction hash)

0x9c2ac5521d37f7174d9957566732151e4628b97ac35c5e9d784f6629eedf714a

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:51:35Z

Bitcoin block

960481

Canonical record hash

sha256:ec1d595409871982bfc9d16b1fa8c72c899572f58eea89459470659ead7b11bc

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC BRMCA8800007

What this proof establishes

This recording was released in 2001, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.