Las Dos Hermanas in A Major - for Guitar

Recording by Francisco Tárrega.

Recording identifiers

ISRC
ITR551413187
CopyrightID (CopyrightChains transaction hash)
0x9000bb2f701b74854e21352f3654f1c6b837cde4a7d384f3f43566f13a370f76
Copyright registration time
2026-07-07T00:29:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:abab2e72c4f89d619495f9f3ed1e7bd0f5ab2d9827091b8e00263ba6960f3625

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.