When Shall We Three Meet Again

Recording by Stefan Kalmer.

Recording identifiers

ISRC
HKI190968224
CopyrightID (CopyrightChains transaction hash)
0x3feaa22bec6bd29369a744c4caa7938cdaa346a30b449521c48f675a1426325a
Copyright registration time
2026-01-28T20:52:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:c652396d4ad656ecd85ea7f562893b93600af72921b8cfb7684c47b79511c10e

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.