OpenTechnical

OT-2026-000074268

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, supply line 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-2026-000074268) never changes.

Identity and time

Publication numberOT-2026-000074268 · never reused
Internal UUID01a0ae93-7178-7c00-b0f7-395949ffc2e5 · 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-2026-000074268
StatusPUBLIC

Content hashes

Canonical textd5c0a0741ea0f9c9c58916440a1e34d5e236089eb43ed16e4d37c64ab2c46243
Markdown35dfc31e5e869f8cc040ec00ab4f9a4f49814c2cbee5b1ca9a3d4007739d6760
PDF
Publication pagea65f7047a568aff7594156464ae3dfa26aa92d1a327fe9e944aedbd3539b14d1
Manifest256510a96494bb8b55106961e2d45870aa6d8281915d0b904a2396e37f744f2d

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
SignaturezpSYzVjBMzQ4SNTA8yreJhT9ykZWSesuUuCZbX4KV3KfKyqXFXD7R1wl9/8wTOBacaoEf9tcIoMWyJr6fZgVDQ==
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

2026-09-17T10:19:10.351074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074268
observed a65f7047a568aff7594156464ae3dfa2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:10.333124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074268/manifest.json
observed 256510a96494bb8b55106961e2d45870...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:10.314756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074268/publication.md
observed 35dfc31e5e869f8cc040ec00ab4f9a4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:10.298343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074268/publication.txt
observed d5c0a0741ea0f9c9c58916440a1e34d5...
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.