Summer Waltz

Recording by Carlos Hof.

Recording identifiers

ISRC
QZ5AB2150213
CopyrightID (CopyrightChains transaction hash)
0xc3f5c13d84bcb300f1c1e3a8f346e5f4ef53e305caa39251da75b6001bc1208d
Copyright registration time
2026-06-10T15:26:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:72ec0d271dc8f935917e42f5994c6e0c1302a5c7b8a12b651a88aebe6fd2ca74

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.