OpenTechnical

OT-2026-000043338

Publication integrity record

Foam pad vacuum gripper, common isolation valve, 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-2026-000043338) never changes.

Identity and time

Publication numberOT-2026-000043338 · never reused
Internal UUID01a0ae7b-327e-7448-9a39-04c87921c15e · 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-2026-000043338
StatusPUBLIC

Content hashes

Canonical text32768fa77345070e9384a1480d29432b5d0ac341bb3524ceb4593ae3096a79db
Markdown13d4d0140d79a811abe20dfc9b4652ddba36b185f131b8dada053a1516194558
PDF
Publication page67d5b6c833c28872a801c7b97106334c42e927ead69d6826b4cb1b35dc5a885c
Manifest720082c0951cb23437bfbb8d786e54ab4acd583f99941ea2c9ab2b39bd5db18a

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
SignaturebCg6nWM+G3xos75aqyYnTQ/5Tz1MBlreCx3HR2S9sUSvxs6/ON8V+mrKvOGtdpYCbr9E+N7Z4dr8UfmJpAf8BQ==
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

2026-09-17T11:13:51.009089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043338
observed 67d5b6c833c28872a801c7b97106334c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:50.990006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043338/manifest.json
observed 720082c0951cb23437bfbb8d786e54ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:50.970537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043338/publication.md
observed 13d4d0140d79a811abe20dfc9b4652dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:50.951239ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043338/publication.txt
observed 32768fa77345070e9384a1480d29432b...
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.