Bridge of Sighs

Recording by Ernesto Cortazar.

Recording identifiers

ISRC
TCABH1228016
CopyrightID (CopyrightChains transaction hash)
0xb0877c6d91cc65e8433bb5acab94d8201fec86d83e3810c8acd08f6b66ee3cf4
Copyright registration time
2026-06-06T00:18:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:78e13884f21263373865be210c7a8981a9f34f351c2208ba829736aa899bcd96

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.