OpenTechnical

OT-2026-000079688

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented after 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-2026-000079688) never changes.

Identity and time

Publication numberOT-2026-000079688 · never reused
Internal UUID01a0ae96-4375-7220-9e04-3f046a026588 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079688
StatusPUBLIC

Content hashes

Canonical text94514fab07f1fe5a5248165a9913fda3258b4eca79b67a984495cb04a91dc263
Markdown723b87ae34d3deafd085042dd2d6f5567dc52d7778aa569367f56371f7fa964f
PDF
Publication page7dbbfc09e4bc9b1ae7f52f2f708976dfc84616b973a9209e559f8009ee2fa9a6
Manifest76f7ab1044160a386daaaa933647ddd20a6cc68fc6a56d20a6476e348b1c4d81

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
SignatureEd+QJJzaNDhpmaxy//+W3uf076v4ie159pbuRVpFb1P+j7dN6XKSHLsKx7immqYBNTKxImBii/R4mlPM6F67Cw==
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

2026-09-17T10:03:27.640291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079688
observed 7dbbfc09e4bc9b1ae7f52f2f708976df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:27.623193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079688/manifest.json
observed 76f7ab1044160a386daaaa933647ddd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:27.606442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079688/publication.md
observed 723b87ae34d3deafd085042dd2d6f556...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:27.586945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079688/publication.txt
observed 94514fab07f1fe5a5248165a9913fda3...
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.