OpenTechnical

OT-2026-000089163

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000089163) never changes.

Identity and time

Publication numberOT-2026-000089163 · never reused
Internal UUID01a0ae9b-db00-743f-9884-9256078be07d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089163
StatusPUBLIC

Content hashes

Canonical textcd7a8c1f3671768b742cca44574072447b1942dce8a78d31267f5c33c5242532
Markdownecda8d32d7a2c782c0b1a225ef45cdd026d5ef98dd6a2b76ec55b5ce931f832c
PDF
Publication page7b369adc958302b5df5fe2bd84a5a8e2b12176b808e9a47a70f582e27e9fcf5a
Manifestd11e68d95cd437f3fb7e43d2454f252778363333d4c762d57dd8ed60870fe1f8

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
Signature5CpygOb2e8AQESa4ShgcQh9o2R6eIeKX0V5lV/0hEz8cnC/HGBRrcISAMI2OMXI6lfl8jsWg5Bt78BSetUcdCQ==
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

2026-09-17T09:47:10.116435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089163
observed 7b369adc958302b5df5fe2bd84a5a8e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:10.098026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089163/manifest.json
observed d11e68d95cd437f3fb7e43d2454f2527...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:10.079730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089163/publication.md
observed ecda8d32d7a2c782c0b1a225ef45cdd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:10.060716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089163/publication.txt
observed cd7a8c1f3671768b742cca4457407244...
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.