Piano Concerto "The World of Yesterday": II. Waltz Variations –

Recording identifiers

ISRC

GBAJY2545502

Release date of the album this recording appears on

2025-02-28

CopyrightID (CopyrightChains transaction hash)

0x76f7d95af0943d88fa9a1d09d9f5f37e89edadebff22d0bdbde69ecedf6ca83d

Copyright registration time

2026-06-04T14:00:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:4dbd2fe1e873cb9a1bc50d6a4aaff6b283118b4cd809855848b8567c3da0e052

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC GBAJY2545502

What this proof establishes

This recording was released in 2025. 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.