OpenTechnical

OT-2026-000081530

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, supply line pressure sensor, 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-2026-000081530) never changes.

Identity and time

Publication numberOT-2026-000081530 · never reused
Internal UUID01a0ae97-0f71-7d36-bacb-cd14e7401235 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081530
StatusPUBLIC

Content hashes

Canonical textdaac108b4df3f4598edd77d9f9ec241052654cc2467f396d2e1b861b32ab1953
Markdown3acd52a559e666640c72ac852f23c2d0355e49c09ae29523103d7591b81e8dea
PDF
Publication page44492f4cf65fa50cf4f3fda841d3343a72d9829ec498b9b940760cbf0b39c785
Manifest134e3ce681ce8eed01a74c508c28de67663dfd60dc16d9692b6ee39533cea88a

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
SignaturerzjcfKYl8GRqAy1g/u7414FzUHsEvWNbeVNc2+vVjYmjMwsN/eBfufKkd4gNhWMlJhY0XK2r8jl1KrjB8wklDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:59:33.042533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081530
observed 44492f4cf65fa50cf4f3fda841d3343a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.023995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081530/manifest.json
observed 134e3ce681ce8eed01a74c508c28de67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.006102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081530/publication.md
observed 3acd52a559e666640c72ac852f23c2d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.987564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081530/publication.txt
observed daac108b4df3f4598edd77d9f9ec2410...
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.