Otra Vez

Recording identifiers

ISRC

QZNWR2115951

Release date of the album this recording appears on

2021-10-13

CopyrightID (CopyrightChains transaction hash)

0x557a36650514633839a1013b82c52e6ea5dec6072c08b1271f68c5ed8bd618a5

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T08:30:10Z

Bitcoin block

960229

Canonical record hash

sha256:922642a62e1d8417f558fd331a6e9109c56f5df9498ce769d70e935dcc6c1bf6

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QZNWR2115951

What this proof establishes

This recording was released in 2021, 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.