OpenTechnical

OT-2026-000087851

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump 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-2026-000087851) never changes.

Identity and time

Publication numberOT-2026-000087851 · never reused
Internal UUID01a0ae9b-1aa5-7f17-92b6-dfdbc92e4685 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087851
StatusPUBLIC

Content hashes

Canonical text7084ac1a261b685dcfdb2f5dde3880ed7141363a368623968672c3fae03ecad3
Markdownf03c8018fb0431843c6f623f614ab0d43a4a3e3afeaea43f3b87d61aa5e6a365
PDF
Publication page833291b7e0a1c24a22a9180b932c07ee56e4844ad3f1524c09c917505216b20b
Manifest6efbf722c339e16fea9b0d34d856823b5981cbfe8042e14718b47679a1c5866c

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
SignatureCZx92B1exJWy5chkmS/WnFPappLr7XF7yhlrDNz8KGNaWrUf+ZAdcTK2KkfTrJtpKLi2ziBgqJvEPDgIK/+zAg==
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

2026-09-17T09:49:05.675824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087851
observed 833291b7e0a1c24a22a9180b932c07ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.657443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087851/manifest.json
observed 6efbf722c339e16fea9b0d34d856823b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.639076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087851/publication.md
observed f03c8018fb0431843c6f623f614ab0d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:05.618822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087851/publication.txt
observed 7084ac1a261b685dcfdb2f5dde3880ed...
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.