OpenTechnical

OT-2026-000061173

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, vented 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-2026-000061173) never changes.

Identity and time

Publication numberOT-2026-000061173 · never reused
Internal UUID01a0ae8b-1380-7be6-a4b6-71d21827139a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061173
StatusPUBLIC

Content hashes

Canonical textedf4e0caa87e302bae8e0ab2d87026ab0daf79205367347cbeccbadff5cdd676
Markdown897b8e2afbc7475775d8911dd34d82413d56e0f1347814b3806d53ec9b99a9b4
PDF
Publication page685192fc7ec483cc4e19caf6c1364884d21ad91e3f95862317c7fffaa15cc743
Manifest81d9865694c218999e8199ef053f96e0eaefa60f6be167c2e708d7765f5bd405

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
SignatureRjHl7wTZDQTyXZ9QiGTD+P97tjJkJgxy5ehvlYGwwvP5pS0wi51ydB0RVZ3pZY73Vb44um0ulzVD7d2WlPErBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:33.802829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061173
observed 685192fc7ec483cc4e19caf6c1364884...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:33.784582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061173/manifest.json
observed 81d9865694c218999e8199ef053f96e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:33.767296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061173/publication.md
observed 897b8e2afbc7475775d8911dd34d8241...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:33.748305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061173/publication.txt
observed edf4e0caa87e302bae8e0ab2d87026ab...
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.