OpenTechnical

OT-2026-000055897

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000055897) never changes.

Identity and time

Publication numberOT-2026-000055897 · never reused
Internal UUID01a0ae87-0a4a-7e94-8665-b621d84159f9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055897
StatusPUBLIC

Content hashes

Canonical text20c44d38648579e77b32277088bef57e02141758f1e274e4ece2635572012728
Markdown78ea8c513a5d7bd19de8337cf1bf28240e8e6e4839c6df550df935a6b80d8fcd
PDF
Publication page3aa2082b8d4f94f3e09039fb82ce1b72e0bd2d76f1f2a2ab57260c0fae35e532
Manifestc6a48824b4afbf21e0ed86def450eb74bb3c8c06e04a304ceec2afa9c82ad8a3

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
SignatureBuTHZJ+Ign3q4Fs4cfS2MARCICx0DBYBBpKyS5fEIZU0ZoJROEEaVNT5EV/7ro6CaUt+6cDminsPWPNR1TjSAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:23.768079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055897
observed 3aa2082b8d4f94f3e09039fb82ce1b72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:23.749156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055897/manifest.json
observed c6a48824b4afbf21e0ed86def450eb74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:23.730514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055897/publication.md
observed 78ea8c513a5d7bd19de8337cf1bf2824...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:23.709948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055897/publication.txt
observed 20c44d38648579e77b32277088bef57e...
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.