OpenTechnical

OT-2026-000048279

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000048279) never changes.

Identity and time

Publication numberOT-2026-000048279 · never reused
Internal UUID01a0ae80-4de3-7e89-9e2f-e3d2ef1ed498 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048279
StatusPUBLIC

Content hashes

Canonical text30115c468d84b3676181248e3121128468c4602bf2951af90cfd5ff30ab19ad6
Markdown2f58ce1de3f6ce22d090f65508292764f4f1e3c301f2929de489dad1148264df
PDF
Publication page77bf3fda61de3e82a31efc6da973da9fe5cb3814bf6b8a1be2081f570efe6280
Manifestd776a9a2fb4002192cc3178081f755cf8c6b7f86fb58ff69ef7f12fd13a997a7

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
SignatureKHsHCnP7JDmokrdhK2gVPIthy2CJpt2aVS0htRLKJlBTVOz7y7w0c0GtHT8z38t3BKC1hliCYcKgVLY/CA6bAw==
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

2026-09-17T11:04:51.610391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048279
observed 77bf3fda61de3e82a31efc6da973da9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.592089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048279/manifest.json
observed d776a9a2fb4002192cc3178081f755cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.574041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048279/publication.md
observed 2f58ce1de3f6ce22d090f65508292764...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.553752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048279/publication.txt
observed 30115c468d84b3676181248e31211284...
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.