OpenTechnical

OT-2026-000026528

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, sustained 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-2026-000026528) never changes.

Identity and time

Publication numberOT-2026-000026528 · never reused
Internal UUID01a0ae71-f4a9-7dd9-9fd0-dc7593579926 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026528
StatusPUBLIC

Content hashes

Canonical text3dab6065f85c65b5de47fb63484dc391679f47793510849d8ca81d2aecaa6f02
Markdowndc9c618346b67da5130bbca95e4abd857d1bc618ec63c8f16540955de72935a0
PDF
Publication page0c0413aaf4e615b8e61040472d433a4a2827c1831920cdfa93a6f61f10f46fc7
Manifest38fa6df60090eacbe3cbedf51532a9915f7181e135f3e2ae8707d326cb828424

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
Signaturepw3xyXcLhDG7PvyquPW7AtQq6BFzobzAh9pB7wunvIA7A4l19nsksO8TWnMeFm6iepXjBx0VEfPdBBza1QXvAw==
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

2026-09-17T11:44:09.538459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026528
observed 0c0413aaf4e615b8e61040472d433a4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:09.521798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026528/manifest.json
observed 38fa6df60090eacbe3cbedf51532a991...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:09.489718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026528/publication.md
observed dc9c618346b67da5130bbca95e4abd85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:09.461950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026528/publication.txt
observed 3dab6065f85c65b5de47fb63484dc391...
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.