Valses poeticos (arr. Peter Breiner): No. 3. Tempo de Vals lento

Recording identifiers

ISRC

HKI199627303

Release date of the album this recording appears on

2012-06-21

CopyrightID (CopyrightChains transaction hash)

0xc311b9730574c6c3f6aa9e2efdc4888ec1e7fdadf0cf46a56052b566190c30c1

Copyright registration time

2026-06-25T06:51:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T16:54:37Z

Bitcoin block

957067

Canonical record hash

sha256:47ad09907c9a36f279a4b0a62ddb85b50d50894e3d9e650a21080e4dcd984a05

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI199627303

What this proof establishes

This recording was released in 2012, 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.