OpenTechnical

OT-2026-000078055

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000078055) never changes.

Identity and time

Publication numberOT-2026-000078055 · never reused
Internal UUID01a0ae95-6e8c-7344-aae8-347200e84c14 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:03.897850Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078055
StatusPUBLIC

Content hashes

Canonical text2c2d6ce0e5864d6a30c5602227692d556ef3874d7f00450e510622b0e3c0814e
Markdown02d4652455c783abf57701ba25c55e3baab951b9e4ed6d1f52bb495a88a58b41
PDF
Publication page01950d28e6b82dd4a278df21ac86b6a9646f65c4404efa8c12e7b4e65a2f7e67
Manifestc443c2e3ab85d219841b28ddae11451d5387603a2274679843f5e77a4d64b69b

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
SignatureLzrqKBGdCdX0xWZ07qNViiwl19t6nrUFNgQzB6+z2WZiIfCmt12pYbUReYOxOxkxTvrWzy+gLKMYBI2/FUn5CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:06:45.539710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078055
observed 01950d28e6b82dd4a278df21ac86b6a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:45.520209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078055/manifest.json
observed c443c2e3ab85d219841b28ddae11451d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:45.498887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078055/publication.md
observed 02d4652455c783abf57701ba25c55e3b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:45.480882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078055/publication.txt
observed 2c2d6ce0e5864d6a30c5602227692d55...
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.