OpenTechnical

OT-2026-000017639

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, three stage ejector, 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-2026-000017639) never changes.

Identity and time

Publication numberOT-2026-000017639 · never reused
Internal UUID01a0ae6e-96f9-774a-a159-ab5c6fce383c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:38.350302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017639
StatusPUBLIC

Content hashes

Canonical text2c57669046a2e635e87d67a5c41a3b6df23b42d5852da1f03044839b793ab055
Markdown7d21345e9e95fba44297a5db46b7da3c91af0e6b63703b2e5d0997f7fb4f21ac
PDF
Publication page384f87d19656a35113cfd63dd328b79a92096935d8aaee744ed425b48d8db47b
Manifest773e9d93ab91e63f6c4d3a2ffc2a04d8f4e828ebc0f3ad4718466baa387a78b4

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
SignatureaEJMHcbXbtMACNXqJMVakCOtaJiExcdTkKnndHTOvIrNjlW4XSBbFC3F7Ynh75LyeFVKAa2PDsleL/S/GW76DQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:01:27.222792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017639
observed 384f87d19656a35113cfd63dd328b79a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:27.205895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017639/manifest.json
observed 773e9d93ab91e63f6c4d3a2ffc2a04d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:27.187042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017639/publication.md
observed 7d21345e9e95fba44297a5db46b7da3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:27.169400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017639/publication.txt
observed 2c57669046a2e635e87d67a5c41a3b6d...
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.