Big Pun

Recording identifiers

ISRC

ZAEI71900278

Release date of the album this recording appears on

2020-09-04

CopyrightID (CopyrightChains transaction hash)

0x77e23b221167e2096120e23d37b53e710bc93f75fcf994686adea4d715bc9a0d

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T17:29:52Z

Bitcoin block

960441

Canonical record hash

sha256:235d2089e955680c852fd99e306e0b2987523ec7b639a6b280fa59a652dc7ea0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC ZAEI71900278

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.