OpenTechnical

OT-2026-000074189

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, manifold pressure sensor, pulsed 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-2026-000074189) never changes.

Identity and time

Publication numberOT-2026-000074189 · never reused
Internal UUID01a0ae93-7178-7957-a452-c802ed22cb7e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074189
StatusPUBLIC

Content hashes

Canonical textdbfa6ecd08f3470b9ada2e8345724a00cf2ea4e2af772e05498a6d523d097fdf
Markdownb7381b2db8e2a7d516907678c43d95b9ebb0abf38569c897449b933f68af1159
PDF
Publication page3f71b17734f54e3b078ed5ac8d7d01a80d841e8a98871cc4f1b6711f496d4506
Manifest8142f93d7f38d4c02e57479f0cd2068cebef42f4919d239012a1bfce0c6a06c7

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
Signature//TFLZE5f4tSWrX0rtnLWKUCsTajUgbVqwjVEzpdJmvJoOgZNDMx66/wBa5fZnDOHxdMK8vaMcdk7/RARP4ZAw==
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

2026-09-17T10:19:02.590908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074189
observed 3f71b17734f54e3b078ed5ac8d7d01a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.573658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074189/manifest.json
observed 8142f93d7f38d4c02e57479f0cd2068c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.555465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074189/publication.md
observed b7381b2db8e2a7d516907678c43d95b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.506937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074189/publication.txt
observed dbfa6ecd08f3470b9ada2e8345724a00...
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.