OpenTechnical

OT-2026-000072506

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, 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-2026-000072506) never changes.

Identity and time

Publication numberOT-2026-000072506 · never reused
Internal UUID01a0ae92-89d8-758c-b0b4-15f7b8f79bd4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072506
StatusPUBLIC

Content hashes

Canonical text07d9a4b838f3ff451dffd78b96e6e357fb1f31afafae98bb975345b63af1f17e
Markdownefa3e0f539df841603c7121dbb0c1072ba490909ede04fd59529add0b819f4bd
PDF
Publication page1efa5459b9a9b5698f3e528e2959558b4b4358e8a6d6fa97a4b0c7d1adcb9dc8
Manifestdf01e2c98c2ac38cae8db53a40c4c59498cf675fee28689c28234c8495234022

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
Signatureqmjz+okgXLLFd3ovVNFJhxCpq5isVL7RZOepSPuMZA30AI/4Rn2Y9QEr73boFfYJ4koRXXTO/9flLkXRp3tdDw==
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

2026-09-17T10:22:20.030415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072506
observed 1efa5459b9a9b5698f3e528e2959558b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:20.013934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072506/manifest.json
observed df01e2c98c2ac38cae8db53a40c4c594...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.995898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072506/publication.md
observed efa3e0f539df841603c7121dbb0c1072...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.977696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072506/publication.txt
observed 07d9a4b838f3ff451dffd78b96e6e357...
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.