OpenTechnical

OT-2026-000021448

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000021448) never changes.

Identity and time

Publication numberOT-2026-000021448 · never reused
Internal UUID01a0ae6f-865d-7d59-8961-96aea82550b4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021448
StatusPUBLIC

Content hashes

Canonical text6963500492633cd705bac010bf0490376f3f898ae39eac25201b71c13f749bea
Markdown20bf1c1c31045b6a12ca51bc80c1c3bc1f0d5f56cc6842c23f11118c1f54b6f5
PDF
Publication page535004193526e0a38e27092b4a8794b10052afa5f6601a48e507a1a22730df90
Manifestbd4845335cd77130d10c79f90d8a1da58b0e3a9ef2bbdb109c5736e90bfab88d

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
SignaturedF2ydE8jwDcfuEAiKto4K+rKYlNgNJ90jntFKIBlOpwiNK/wYw8x7iA51oBtNu2gdk+8ZbkA/z1ocW1ZChJrAA==
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

2026-09-17T11:55:21.670906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021448
observed 535004193526e0a38e27092b4a8794b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:21.652977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021448/manifest.json
observed bd4845335cd77130d10c79f90d8a1da5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:21.635872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021448/publication.md
observed 20bf1c1c31045b6a12ca51bc80c1c3bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:21.618956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021448/publication.txt
observed 6963500492633cd705bac010bf049037...
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.