OpenTechnical

OT-2026-000007078

Publication integrity record

Vacuum cup gripper, common isolation valve, pump fed, contact triggered, vented before set down

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-2026-000007078) never changes.

Identity and time

Publication numberOT-2026-000007078 · never reused
Internal UUID01a0a971-dbbf-7932-825e-25871887a903 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:00:06.629281Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007078
StatusPUBLIC

Content hashes

Canonical text0e122fb715a74b31dc1f48b5f57db292d70bd21143e163a975812eef980ed256
Markdown48da85058a76ce3df9a9ea30a8fe7aa93e2cc7a74854611951f665e787f7f9e4
PDF
Publication pagea0132aea2d59a4f2adea18d647c75472eaab7a3e30c01451248494240da22e40
Manifest4ce00f9b50813b23cdabfae0b7e245651981817bc306b51ab32e924dc9b4a345

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
SignatureuMWek8Wtzsa/84vkW+8UbK37/HYVfdgNcyTdaKiln0fshAAxiFVadiwobNq/cTld3R7YBtXF4rCflt8xn825DA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:29.505309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007078
observed a0132aea2d59a4f2adea18d647c75472...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:29.492774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007078/manifest.json
observed 4ce00f9b50813b23cdabfae0b7e24565...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:29.479329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007078/publication.md
observed 48da85058a76ce3df9a9ea30a8fe7aa9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:29.466280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007078/publication.txt
observed 0e122fb715a74b31dc1f48b5f57db292...
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.