OpenTechnical

OT-2026-000081664

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, 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-2026-000081664) never changes.

Identity and time

Publication numberOT-2026-000081664 · never reused
Internal UUID01a0ae97-0f73-7849-b10a-3f3356da3741 · 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-2026-000081664
StatusPUBLIC

Content hashes

Canonical text22c312c5d414800315a6cb9c2029ddeab6e7ee0a3df8ba975ab3367f01622f52
Markdownec59ee0458a21be540e9aa32cf7dbe3b26bbc8d595876ff174bf445456008018
PDF
Publication page4b0f150141ec5139d597f0c43984b9d5ba7a4e9beb97898e1918731ee1ea2fdc
Manifest6416e1b4e23655ced2b79a6f093251f06b80ba897077de497d200c01fb0a0c73

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
SignaturebT3UBpP2ljKOJMjVzAmHsIOytizrDrfeS4uAsuNuBsk2CbxW9RHQN8Q2GBS7DQ5ot0Yi+dV/S1oRSi+D1w5rAQ==
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

2026-09-17T09:59:43.367553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081664
observed 4b0f150141ec5139d597f0c43984b9d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.350013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081664/manifest.json
observed 6416e1b4e23655ced2b79a6f093251f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.332723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081664/publication.md
observed ec59ee0458a21be540e9aa32cf7dbe3b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.313281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081664/publication.txt
observed 22c312c5d414800315a6cb9c2029ddea...
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.