Carta

Recording by Martins.

Recording identifiers

ISRC
BCP2M2200003
CopyrightID (CopyrightChains transaction hash)
0x7b89d7534577d27a19f5bb7f56f7c97e207817f1b0ad853af47558934a99958d
Copyright registration time
2026-07-07T10:39:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:05c4e1495a1cfd3e15b0917e4373d9dc1a80a0ebe2d3c4d21b3b196718c917bd

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.