OpenTechnical

OT-2026-000013501

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, two 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-2026-000013501) never changes.

Identity and time

Publication numberOT-2026-000013501 · never reused
Internal UUID01a0ae6d-6fcb-765c-bcb9-af852cbb0647 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013501
StatusPUBLIC

Content hashes

Canonical textf64a81065fd50d0fdb29f8fc0be4a03f03f9c60e5be008f35eb02bb220a3ffe8
Markdownc74d1e66da318575449a27bea6768c698f278cdd38a18d33f33821ed5b779094
PDF
Publication page8f7645d8b9096ac4b2ceb1e5d0444162a7af5213d1c2d8a1fd2a9dde8d36abe8
Manifest049f3090340f860c4731bb7084d27ea2bd4a0f3f4417cd8a9bb107e465a39efc

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
SignatureBvhVovxiy3Rf+/nfpax4I824alvM09IiCvBvtyJHsEqadexIG3+gAq8B2RGEAkVw0QYSzuRJ190FfdduHSHjBA==
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

2026-09-17T12:10:00.613375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013501
observed 8f7645d8b9096ac4b2ceb1e5d0444162...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:00.593154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013501/manifest.json
observed 049f3090340f860c4731bb7084d27ea2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:00.574113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013501/publication.md
observed c74d1e66da318575449a27bea6768c69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:00.556384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013501/publication.txt
observed f64a81065fd50d0fdb29f8fc0be4a03f...
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.