OpenTechnical

OT-2026-000040325

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, pulsed blow-off after 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-2026-000040325) never changes.

Identity and time

Publication numberOT-2026-000040325 · never reused
Internal UUID01a0ae79-2700-7aa1-92a6-ab9d5f15c324 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:10.588850Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000040325
StatusPUBLIC

Content hashes

Canonical textf44198efbb0f9e9bbf422b6725c86abaa0a980398f21bf739e1b11b098c37ee7
Markdown39533bc483b90026cb86531a374652d177c0b7b9744d4e6798cb22bb7164d904
PDF
Publication page73dd743b15290f883dd79c65d0ec83e7144174ce6a04c626d4c8066bcf6799f3
Manifest0269a39a675c519a8db0f78cf14185dcedae1c69c8bb6a4786e215d4677ebfc9

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
SignaturesywQVG0HQxkxoANQ6QEO8Xn7XOhF9I/WVmAOTGx4tWeEz2ARTEZy958eCVA2cXk8PAKxprhqdSNN5EHG5v8eDQ==
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

2026-09-17T11:19:19.694288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040325
observed 73dd743b15290f883dd79c65d0ec83e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:19.676218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040325/manifest.json
observed 0269a39a675c519a8db0f78cf14185dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:19.658257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040325/publication.md
observed 39533bc483b90026cb86531a374652d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:19.640983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040325/publication.txt
observed f44198efbb0f9e9bbf422b6725c86aba...
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.