OpenTechnical

OT-2026-000044800

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum 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-2026-000044800) never changes.

Identity and time

Publication numberOT-2026-000044800 · never reused
Internal UUID01a0ae7c-911b-71f9-a245-517e5f419a38 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:54.474009Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000044800
StatusPUBLIC

Content hashes

Canonical text9e0fa44e53e89985f796f77fadd806d4b7f2f99d5a83de77c3ae595a377c6f42
Markdown06aa54dbfc6ce63b478846a746c8389e45d2e1b250c17aaa573a2b0db499935c
PDF
Publication page3e22bf379f0b127ae8ab597ee89d127401a770dac868f362fc0c90bbc08e6922
Manifest751f5e2a9b74a956a4dded846654cb4da31ebcf627618dee74c1f791eb9a6b6d

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
Signature6HXQ/RjRERyMZRYdPqcrJ9vq/dnk/1s5rOuOBvw1jfmOHLYzWOcJu7Muxnah7ophbTNdzEUZUmfAsDi4IzI+Cw==
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

2026-09-17T11:11:25.766665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044800
observed 3e22bf379f0b127ae8ab597ee89d1274...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:25.748283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044800/manifest.json
observed 751f5e2a9b74a956a4dded846654cb4d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:25.730200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044800/publication.md
observed 06aa54dbfc6ce63b478846a746c8389e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:25.710982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044800/publication.txt
observed 9e0fa44e53e89985f796f77fadd806d4...
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.