Brahms: Symphony No. 1 in C Minor, Op. 68 (Excerpt)

Recording identifiers

ISRC

ES5087404703

CopyrightID (CopyrightChains transaction hash)

0x88450fb280b0fa95fc0f9d2aa082c6c0b5728b5228d60b70b0f7b715401b64fb

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T12:45:34Z

Bitcoin block

960258

Canonical record hash

sha256:8d3af9ce74c8982470cf0807221ccc7bf836da7b16925656c69b4a8f33f960aa

• Verify the CopyrightID on CopyrightChains
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What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.