Tristan und Isolde, WWV 90 / Act III: Mild und leise wie er lächelt - Live at Bayreuther Festspiele / 1966

Recording identifiers

ISRC

DEF056630206

Release date of the album this recording appears on

1966-01-01

CopyrightID (CopyrightChains transaction hash)

0x5a7e736321b6dc18c1d54bd1eb7e6a4c686768b960d9b504bd293358a695d364

Copyright registration time

2026-07-02T22:26:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:3d71ea2a3f9a20257b40d3d069829fddb100cefc58ac586538a4b70d01a7d044

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF056630206

What this proof establishes

This recording was released in 1966, 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.