Valsa da Solidão

Recording identifiers

ISRC

BRPUI0500008

CopyrightID (CopyrightChains transaction hash)

0x964219ddb153afcd67b59a7d5d798ec546b44a8638e1e05b95aea628625e8fb2

Copyright registration time

2026-07-07T04:12:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:ba5192e33b34bda8442e5eeb8fd841b0f9444ef6b5d008237b34f3ae15bd076c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.