The Professionals

Recording identifiers

ISRC

NLSF51200020

Release date of the album this recording appears on

2023-01-27

CopyrightID (CopyrightChains transaction hash)

0x3eda4d386d5dbe6e91b1e043df7aff2e816afbed65baf10a3a7f89f197a03a26

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:0da9e8333a5abdf4553fe1eefaea060e22da47d2b5ebd8dbd40c16c2c74222ee

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLSF51200020

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.