Vals, Op. 8 No. 3

Recording by Agustín Barrios Mangoré.

Recording identifiers

ISRC
ITDF62414001
CopyrightID (CopyrightChains transaction hash)
0xa416c0643c6e6ff50f44ac5bd95d2bfcaa17b428434f37cf99307d1067f04b98
Copyright registration time
2026-07-07T10:34:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:96da46bcfbfd23df6e0c8245014357501563d8ea2e547d941ab1049824941fa7

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.