Requiem

Recording by John Sachs.

Recording identifiers

ISRC
SE5IB2299986
CopyrightID (CopyrightChains transaction hash)
0x886b86c7d9b9485192c33b8336cd5b2a4531e5b4b3d0f3bedd1a1327025a1ff4
Copyright registration time
2026-07-31T17:59:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:0fa759b33b7f87747c984e818698ee8074c8b11da73280d1686518faa4b78880

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.