Call of Silence (Music Inspired by the Film) - From Attack on Titan (Piano Version)

Recording identifiers

ISRC

ITDF62133188

Release date of the album this recording appears on

2021-10-27

CopyrightID (CopyrightChains transaction hash)

0x3f80cd45fbefad4e6f506fed6421a5a50c43bc57a501c41a8bfe6c498d2f6b97

Copyright registration time

2026-07-06T21:39:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:ec03b1939a72f40d24657045c21c9dc8ee37520cbb02543291d68369a3cb7c7e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC ITDF62133188

What this proof establishes

This recording was released in 2021, 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.