OpenTechnical

OT-2026-000014202

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, pulsed blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000014202) never changes.

Identity and time

Publication numberOT-2026-000014202 · never reused
Internal UUID01a0ae6d-b279-7ced-8f04-c0fa995bd922 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:39.853300Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000014202
StatusPUBLIC

Content hashes

Canonical textae6bc4cdcd773a741712238105eecc7babe124996e051d661008e69af1f05039
Markdownd6129bbffb2a5b1f611c3f77ea2452131bcdb455d02f7d2442fe913686c52dd6
PDF
Publication page961a290df3ee15ccdc9e0fbd363f25235b5c5551fb2eb19ec0cabd9ae398e82a
Manifestf6f8fc731eda2d40c8f9b62473b38c6446ac44db51613b408f3ab8c94cec8f81

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureVXb3AsmIoWAmP6olQHlXaLFOBmFhGZBsxBd/Wb9P+BOISJhyvO0ghJGM6klNLqT7dhfdloOcAP25SfDJACtFBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:07:18.332033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014202
observed 961a290df3ee15ccdc9e0fbd363f2523...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:18.312935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014202/manifest.json
observed f6f8fc731eda2d40c8f9b62473b38c64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:18.292801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014202/publication.md
observed d6129bbffb2a5b1f611c3f77ea245213...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:18.273441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014202/publication.txt
observed ae6bc4cdcd773a741712238105eecc7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.