OpenTechnical

OT-2026-000055991

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, three stage ejector, supply line pressure sensor, pulsed blow-off 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-2026-000055991) never changes.

Identity and time

Publication numberOT-2026-000055991 · never reused
Internal UUID01a0ae87-0a4a-7376-a99a-ccb453b047c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055991
StatusPUBLIC

Content hashes

Canonical texte8839d9aa7f1b2322d0363394dac4d2ea81f80d77d74dc017db8ccb8f9a79c52
Markdownbb7e9a32ebce9870990a4405d1b4c100e8db3555cc11538de00f6aa2188f86f0
PDF
Publication page24b3174dedbb3f1764f37b16574c42e42fe728d8d2cce87e70bb0b5d20208eda
Manifest9e0ec111e78af944056c32257f06474e6c6fdd43a586d3afb9f2ec3bc423b2cd

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
SignatureROzM8Yl2qUmiTF5J1EFbkbojGHlh/haqbVIxf3JVGTItvVqysegvcIL6bhfkaxB5fj30bPJGwjBdj8ZpXQVHBw==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:30.918343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055991
observed 24b3174dedbb3f1764f37b16574c42e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:30.901369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055991/manifest.json
observed 9e0ec111e78af944056c32257f06474e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:30.884404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055991/publication.md
observed bb7e9a32ebce9870990a4405d1b4c100...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:30.867215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055991/publication.txt
observed e8839d9aa7f1b2322d0363394dac4d2e...
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.