OpenTechnical

OT-2026-000043017

Publication integrity record

Two cup vacuum gripper, two outlet manifold, plant vacuum fed, sustained 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-2026-000043017) never changes.

Identity and time

Publication numberOT-2026-000043017 · never reused
Internal UUID01a0ae7b-3278-74ad-a348-9c4674ab36f1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043017
StatusPUBLIC

Content hashes

Canonical text65c23407c9121af4f602482a00678148f5914a80f501e352af9c245bac681f2b
Markdown1cd9535a63db920f36d65152dac8a326450ec84e111fe3dc2133e4146df0a71a
PDF
Publication page9f4c9f25f9e4c3e95b7d3b69c0452fb7b6aa1ee3388d9e029a9043a84b584c20
Manifest23434c366f96696b41e35e6a5fabf26bf3548f78b33f304bbf444dc03cb84b09

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
SignatureJVKFkOYuElexUzEPHBajflI55bXOiMf+J3IPLC4ZAF6w4KH/iJZuNE/2EEO/ILisnRrDARZx5Urc34Qd2hqbDg==
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

2026-09-17T11:13:19.875898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043017
observed 9f4c9f25f9e4c3e95b7d3b69c0452fb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:19.857727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043017/manifest.json
observed 23434c366f96696b41e35e6a5fabf26b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:19.839494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043017/publication.md
observed 1cd9535a63db920f36d65152dac8a326...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:19.822794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043017/publication.txt
observed 65c23407c9121af4f602482a00678148...
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.