OpenTechnical

OT-2026-000005016

Publication integrity record

Vacuum cup gripper, two zone face, pump fed, pressure verified at each zone

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-2026-000005016) never changes.

Identity and time

Publication numberOT-2026-000005016 · never reused
Internal UUID01a0a92b-1968-71cf-875e-b8733dd48331 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:42:49.196566Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005016
StatusPUBLIC

Content hashes

Canonical text262054f8e4a469e3e0de47fde04ed99ee3b16d16e870684d6827dae2fba5c16e
Markdown4cdb859f303860d14cb5cfd7eb17ed2e833933b1bd3fe69e04e0363eafc8d411
PDF
Publication page2ea70bc57483311875b71af74a334cb2f2edf7b8859e8d5eea5f7cd162857f6a
Manifest869ea4f1c9264cc92ed725fbc89345e5a0f6257d617b550fda8ab6013a9323ba

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
Signature9WfF5Fc+5XGaeUC1BITBulkcbOL05SACSaHdEEVRP1gfMW9/tOwD1fhAzrHAyZxwXDjnRoVD7MUwCyr989hqDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-10-11T04:23:07.753245ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016
observed 2ea70bc57483311875b71af74a334cb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-11T04:23:07.740361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016/manifest.json
observed 869ea4f1c9264cc92ed725fbc89345e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-11T04:23:07.692532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016/publication.md
observed 4cdb859f303860d14cb5cfd7eb17ed2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-11T04:23:07.640233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016/publication.txt
observed 262054f8e4a469e3e0de47fde04ed99e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-06T04:23:24.659486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016
observed 2ea70bc57483311875b71af74a334cb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-06T04:23:24.645401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016/manifest.json
observed 869ea4f1c9264cc92ed725fbc89345e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-06T04:23:24.631679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016/publication.md
observed 4cdb859f303860d14cb5cfd7eb17ed2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-06T04:23:24.446605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005016/publication.txt
observed 262054f8e4a469e3e0de47fde04ed99e...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent