Yesterday

Recording by Alan Walker.

Recording identifiers

ISRC
NOG842308010
Release date of the album this recording appears on
2023-11-10
CopyrightID (CopyrightChains transaction hash)
0xde67c8cfe31bdf0c7ef951b3cf6adb002ffea05d7edd9b584317998497b2857e
Copyright registration time
2026-06-04T08:55:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:4ca027876d051286cafa59f80202d21de28ffc521173506f1b74a740e00a5b98

What this proof establishes

This recording was released in 2023. 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.