OpenTechnical

OT-2026-000072196

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum 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-2026-000072196) never changes.

Identity and time

Publication numberOT-2026-000072196 · never reused
Internal UUID01a0ae92-47c2-72c4-ae3a-ac9e96a70aba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072196
StatusPUBLIC

Content hashes

Canonical text22bf81357ce47106717eb156d8b1d09c93beef6d4c299118dd7ce13a1d55d8c2
Markdown6f86a4caec9e1cc09945831df02e43f097866936e8eaeb457db2f400fcc3546b
PDF
Publication page78221d28d3cb0c5be5a6b8313aed580f481d495bbee050617e18a931ed8859ea
Manifest1a1e366736aabd5d425994c9de97a2462a7d6e8292002dd307155df1a71bb936

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
SignatureIGd6yUCDVZgWmD5FcaT8lIEWWD5pU0UlR2o30lvXX3wuYT+cmOjOSzeDU8PzJX7C/bNGD6aE/1tY8D+7DVaZCw==
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

2026-09-17T10:23:17.873250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072196
observed 78221d28d3cb0c5be5a6b8313aed580f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.857237ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072196/manifest.json
observed 1a1e366736aabd5d425994c9de97a246...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.839766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072196/publication.md
observed 6f86a4caec9e1cc09945831df02e43f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.813593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072196/publication.txt
observed 22bf81357ce47106717eb156d8b1d09c...
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.