OpenTechnical

OT-2026-000012929

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000012929) never changes.

Identity and time

Publication numberOT-2026-000012929 · never reused
Internal UUID01a0ae6d-5564-7625-8072-c1153f1993d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012929
StatusPUBLIC

Content hashes

Canonical textfc6c38fc2e346b0232beda3bf17d0d202cab34aa74b2fb27442a4e5dc7e7a643
Markdownb8d7ef6fe8353c0ff01559ba48309df9b6315717d3e606fbab81b8738009c48c
PDF
Publication page9ef49f6c607f76ab8acbe629b1fa356286639dbd13a676f4301e026354e881c6
Manifestf6a138aeaf64a6d234956db131c14bb3600bd9492413ee4900838b4bc87a55c9

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
SignatureTFafUctid1wTz9sE1vLJZcDXOpwidnsDf1hs2mprj34Yp/EkZ5wnWifLti/gQVKDxKtZZdyY/FElUGnHZrmyBQ==
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

2026-09-17T12:10:43.680199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012929
observed 9ef49f6c607f76ab8acbe629b1fa3562...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:43.661904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012929/manifest.json
observed f6a138aeaf64a6d234956db131c14bb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:43.643930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012929/publication.md
observed b8d7ef6fe8353c0ff01559ba48309df9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:43.624154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012929/publication.txt
observed fc6c38fc2e346b0232beda3bf17d0d20...
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.