OpenTechnical

OT-2026-000005174

Publication integrity record

Vacuum cup gripper, two zone face, plant vacuum fed, pressure verified, vented after set down

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-2026-000005174) never changes.

Identity and time

Publication numberOT-2026-000005174 · never reused
Internal UUID01a0a930-4475-7f22-896d-130c90407c0c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:48:27.896654Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005174
StatusPUBLIC

Content hashes

Canonical text51647da977adb097cbc0ec7434c19c98b5de58ddccc478366e139d912c65a98f
Markdownc10cd1ace5f63fa711c02e7b461b1eb48a64194bd9159b6826309922c5cc2482
PDF
Publication pagea0d004a0aa7199d7a893e570818b880f33eb197664f2c2ad50786d15daf192f1
Manifest727010a3468417dbd48a6d484d7a167a6d5b014bc3bf67c53f34a07b09b95caf

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
SignatureSA+s065EEvZY1JS9LjevaxuQRq4nEayIJjIS/BS6B1+tCNAr/SoV5Qrw4Gj1n7sg6pOsm1gLB6WSNrtlEVxpAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T07:50:07.214154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005174
observed a0d004a0aa7199d7a893e570818b880f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:07.201887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005174/manifest.json
observed 727010a3468417dbd48a6d484d7a167a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:07.189777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005174/publication.md
observed c10cd1ace5f63fa711c02e7b461b1eb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:07.176184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005174/publication.txt
observed 51647da977adb097cbc0ec7434c19c98...
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.