OpenTechnical

OT-2026-000057805

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented before 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-2026-000057805) never changes.

Identity and time

Publication numberOT-2026-000057805 · never reused
Internal UUID01a0ae88-6ed7-7d0d-90a6-bafdb5565f9f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057805
StatusPUBLIC

Content hashes

Canonical text7f3ea6b2329cfc23ec094b0891ceae83e0e6ff8c492f92c7e3d6c3681fc49e80
Markdown1bb9af5aed7cc1eeb70f8bc2548bf8c4b9af9ec41c4b39fc8d1376fa7bb1ef9c
PDF
Publication page9cfc76ae220298fc626be1b980ab591637cf96c09d339873ab9c7f2ba27f0873
Manifestc72f106e2e62a023ba1492717f4313f43362ac9ec8fe1696e4bd06dcf24c086f

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
SignaturelCaZrfeIJYDzrltKXpdqchZpDk+c+zYG7Vea9qW2ICfxoGiB9ThKs0LNWNV2oE0FARleo/CsRs0wE93cOI8lBA==
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

2026-09-17T10:47:22.231570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057805
observed 9cfc76ae220298fc626be1b980ab5916...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:22.210986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057805/manifest.json
observed c72f106e2e62a023ba1492717f4313f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:22.190460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057805/publication.md
observed 1bb9af5aed7cc1eeb70f8bc2548bf8c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:22.168606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057805/publication.txt
observed 7f3ea6b2329cfc23ec094b0891ceae83...
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.