OpenTechnical

OT-2026-000043840

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, pulsed blow-off after 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-2026-000043840) never changes.

Identity and time

Publication numberOT-2026-000043840 · never reused
Internal UUID01a0ae7b-d677-7225-9d1c-5d501fcb8770 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043840
StatusPUBLIC

Content hashes

Canonical text9963a3a460ce3ffb1f01cb1b27158102da64e390c09a8103a437d8e568f4482f
Markdown25fbe732e7256531986a076bc5c706ea75f4fc56ce52c879ef2d6875f10ba1f9
PDF
Publication page6db33a70cbc01cdd6912705fa0fb83cbff5e574b64019238080b3d85b31c8896
Manifest0e2cb5d39dd536adfb6791f0304210753f4ce36a6881773fc90430978f53f837

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
Signature5dh997oVWJiJAwAholX6i4c4cWB91xm+9MOYu6r2aBlW+bUbLoGbgoMQCaWfrG/fL6TLFU/2dwFczRph4wrkBw==
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

2026-09-17T11:12:09.346637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043840
observed 6db33a70cbc01cdd6912705fa0fb83cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:09.326610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043840/manifest.json
observed 0e2cb5d39dd536adfb6791f030421075...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:09.308919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043840/publication.md
observed 25fbe732e7256531986a076bc5c706ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:09.291732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043840/publication.txt
observed 9963a3a460ce3ffb1f01cb1b27158102...
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.