OpenTechnical

OT-2026-000028051

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, 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-2026-000028051) never changes.

Identity and time

Publication numberOT-2026-000028051 · never reused
Internal UUID01a0ae72-a51f-7ee7-b0eb-a7341260c542 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028051
StatusPUBLIC

Content hashes

Canonical text7ed97ada37cd67b8be0de7ee7420ad0e70a665cc2a242a506f47b3cb35c95df3
Markdown7583e30d1de064c1a1a33d26a7a50e73dfeab5926f168002bb9d64e6c8ff50ac
PDF
Publication pagee6dab26c7673e83bed25178e00f94fa1149a7d6b0622ffba66ba934ddf8fe381
Manifest33fa42bc73d5c4b9653c1cbe0eb5f51e4f13f75cd0fa2fafd3e9c6265613103b

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
Signature2K+Bfl0Xjie6/ATNY2I5KgDl+Ie2RJehzAEBABdWCrdL1P98xzO/egdwhIG0duhs9Q8AmT7BFsUWzvIvuC2JCg==
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

2026-09-17T11:42:22.998130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028051
observed e6dab26c7673e83bed25178e00f94fa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.981166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028051/manifest.json
observed 33fa42bc73d5c4b9653c1cbe0eb5f51e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.961203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028051/publication.md
observed 7583e30d1de064c1a1a33d26a7a50e73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.942147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028051/publication.txt
observed 7ed97ada37cd67b8be0de7ee7420ad0e...
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.