KNOCKA

Recording identifiers

ISRC

QMRSZ2400802

Release date of the album this recording appears on

2024-04-26

CopyrightID (CopyrightChains transaction hash)

0x13da736ed1a81b62f257ac8eb9d9f6689b77a18117b0463d851c309e1b83f915

Copyright registration time

2026-06-04T08:52:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:f5c7acfa13d4321b9ec15721cebe5bcab7e73da34d639742c7c970fb91834a45

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Download the anchored registration record (its SHA-256 is the canonical record hash above)
• Recording evidence summary for ISRC QMRSZ2400802

What this proof establishes

This recording was released in 2024. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.