OpenTechnical

OT-2026-000074900

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, three stage ejector, manifold pressure sensor, vented 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-2026-000074900) never changes.

Identity and time

Publication numberOT-2026-000074900 · never reused
Internal UUID01a0ae93-ac2c-765b-a9e7-ad5a7b4f2824 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074900
StatusPUBLIC

Content hashes

Canonical text3b67da46bc641bc76e6bf46cadba434a67f1a324f5c6ba109aeb59c3edfa4232
Markdown18f7315547f29c5438af979267e312cdb16b5c9c1d5a641a0b3224b12b055d65
PDF
Publication page1fee8c7ac40df67ee8119dfaba8f6cdf8d758f5c08263e23e3bbad4c932aac52
Manifest1739f285f99067cf03b52844d259c1ecbdaf4bf48de43e6da9262b517617d36d

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
SignatureMZaqDK1t5A/Pwj0YbQSBqcAhLNLqF5h6/W4aO38+Qogj8dnazH9RgUg+sscy6h8ICOfoOi9Uo0D9EayU0KnqBA==
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

2026-09-17T10:18:37.343930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074900
observed 1fee8c7ac40df67ee8119dfaba8f6cdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.327754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074900/manifest.json
observed 1739f285f99067cf03b52844d259c1ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.310814ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074900/publication.md
observed 18f7315547f29c5438af979267e312cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.293633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074900/publication.txt
observed 3b67da46bc641bc76e6bf46cadba434a...
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.