OpenTechnical

OT-2026-000067744

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, sustained blow-off 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-2026-000067744) never changes.

Identity and time

Publication numberOT-2026-000067744 · never reused
Internal UUID01a0ae8f-c4fa-7ea2-baf8-7a0823edf96f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067744
StatusPUBLIC

Content hashes

Canonical text442fd99e91581d5b3a9125d1e8c5f425ed4b834016d1a3e73733b0d1994d8e81
Markdownfc9872185fa67419e31086396f9622c500bba8696f96cb7228a79b31a6cb1ead
PDF
Publication page7bb42556f984b9b1e86e1ae1b24a7dba28f17297514e2e25fe7538ecff213b3c
Manifest3416aa11751e5c2602b39affe3d125524f5cf16ea8428b09e31e3a3ff98dfa9f

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
SignaturetQOaI4pXdnBnL8mO4GfDnExlCQmiQ1SJoh6/Z80WSornutTGhyIXAoKCSd9NGJypQldgd20brcNZiSLkcupbAQ==
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

2026-09-17T10:29:58.006071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067744
observed 7bb42556f984b9b1e86e1ae1b24a7dba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:57.987842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067744/manifest.json
observed 3416aa11751e5c2602b39affe3d12552...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:57.969788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067744/publication.md
observed fc9872185fa67419e31086396f9622c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:57.950357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067744/publication.txt
observed 442fd99e91581d5b3a9125d1e8c5f425...
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.