OpenTechnical

OT-2026-000081153

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000081153) never changes.

Identity and time

Publication numberOT-2026-000081153 · never reused
Internal UUID01a0ae96-b977-7be2-b16c-82ab9f4d302e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081153
StatusPUBLIC

Content hashes

Canonical textd36d51b30085deba7ef9173baefb97d5f0446614488121a46d354b12dc49e4c1
Markdowna40fa95093d58f5c8f59a94492c4b940006ece4737dd65239dcdd6179e3aa106
PDF
Publication page96587f40b227af5caafe5833aa63fec0f68e5c9afdfbdf5f08ce27ca16a0d154
Manifest14db03a30d1537c89a38f84005996ffc2be2f7d7a444528c76b4f13328caa3ac

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
SignaturedR+D8jZGDK5QcPfQFrtJiX2/k5VK0DvObT96QJLaPjixYZprrl+JPatRWJwN/fahOaV9FIoeZ64sOE3ruOrdAA==
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

2026-09-17T10:02:32.673372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081153
observed 96587f40b227af5caafe5833aa63fec0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.655932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081153/manifest.json
observed 14db03a30d1537c89a38f84005996ffc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.638400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081153/publication.md
observed a40fa95093d58f5c8f59a94492c4b940...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.619796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081153/publication.txt
observed d36d51b30085deba7ef9173baefb97d5...
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.