The human originates.
w_AI = 0 is an authority invariant. An instrument may assist, but it does not originate intention or hold independent signing authority.
Visual companion / TKDF-256
TKDF-256
The anatomy of a commitment.
From exact input bytes to a reproducible digest. Explore nine domain commitments, the human authority boundary and the evidence a cryptographic record can actually carry.
SOURCE-LINKEDCORPUS Δ1
Cryptography / Executable exhibit
Not a random string.
A reproducible commitment.
Select a published conformance vector. The browser computes SHA-256 over its exact byte sequence. Flip one input bit to inspect the difference.
Appendix W.7.10 / Nine public test vectors
Inside TKDF-256
Heritage verification
80 input bytes / 32 output bytes01 / Input 1
1ed80be5bdf906eb259b04e9331fe4ec0cb3bc01aed5dbfb0bf9016c521825ea32 bytes · 32 raw bytes02 / Input 2
c68d5bb2a8759ea332f642c6758d82ebbf8f0d6826f4182103b9a81a2b8f5af832 bytes · 32 raw bytes03 / Coherence
3fee63f141205bc08 bytes · float64 big-endian04 / TKDF:HER
544b44463a4845528 bytes · UTF-8, appended lastSHA-256
COMPUTED DIGEST / 256 BITS
Computing locally...Waiting for local computation.
Changed inputs are an experiment, not the original record.
Inspect the published reference and complete preimage
Published expected digest
c8041da8bbde4afe00906e6d0efb64300f90d2755b92b7835a736281fb179136Actual preimage, in input order
1ed80be5bdf906eb259b04e9331fe4ec0cb3bc01aed5dbfb0bf9016c521825eac68d5bb2a8759ea332f642c6758d82ebbf8f0d6826f4182103b9a81a2b8f5af83fee63f141205bc0544b44463a484552The domain suffix comes last. Hashes are raw bytes; the coherence value is float64 big-endian. These are fixed source fixtures, not an arbitrary-input key derivation tool.
Browser cryptography documentation© TKDF-256 - author: Erico LisbôaCorpus Δ1 ↗
The schema binds.
TKDF-256 combines ordered, fixed-width inputs with a specified domain commitment. Its published cryptographic dependency is SHA-256. Input meaning, encoding and order are part of the specification.
The result can be reproduced.
A matching digest establishes reproduction of a published vector. It does not establish a signature, an honest measurement, chain inclusion or complete TKDF conformance.
The source remains the reference
Read beyond the diagram.
The companion volume reads from the corpus. This visual essay explains selected mechanisms; the governing corpus controls any conflict.