3 Concert Studies for Guitar: No. 2, Toccata em ritmo de samba

Recording identifiers

ISRC

HKI191944302

Release date of the album this recording appears on

2020-04-10

CopyrightID (CopyrightChains transaction hash)

0xad63da89f99c59abcd136494381eab7b321cfc8800383c183063759b5b5cfcc6

Copyright registration time

2026-07-29T15:42:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:750ba20598eaa04acc8240d8bd04e49137124f92afff4c9fcfafcba32a7b14e8

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC HKI191944302

What this proof establishes

This recording was released in 2020, 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.