OpenTechnical

OT-2026-000028123

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, plant vacuum fed, pulsed 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-2026-000028123) never changes.

Identity and time

Publication numberOT-2026-000028123 · never reused
Internal UUID01a0ae72-a520-782d-970a-22e9b9595c47 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028123
StatusPUBLIC

Content hashes

Canonical text39868773de3c8d835feb19baa0eec443db45e4fce63bec5867b4700389169bc3
Markdowne5b27478f4a7cf31766be11e5835ace26431dd9e3d24818c66d91e000575974e
PDF
Publication page31a99c94220336b0ae6887ca2c23335b44573b4da9811b36299453f02c9ec929
Manifestff5cd5187f3f640f70643d12872a86464b821860c553e255a785af4d71ab6182

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
SignatureeoqDsnGzIZ1DwoVlS2g19LF2jB1IV6m8uj8MU9/VA0dOhbD8BuUgpoSMV6RGuSWQ4WKgkZvvMT+lioC651p8Cw==
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

2026-09-17T11:42:28.346950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028123
observed 31a99c94220336b0ae6887ca2c23335b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.331647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028123/manifest.json
observed ff5cd5187f3f640f70643d12872a8646...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.314780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028123/publication.md
observed e5b27478f4a7cf31766be11e5835ace2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.298363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028123/publication.txt
observed 39868773de3c8d835feb19baa0eec443...
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.