OpenTechnical

OT-2026-000090261

Publication integrity record

Foam pad vacuum gripper, two zone face, two stage ejector, pressure sensor per zone, sustained blow-off 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-2026-000090261) never changes.

Identity and time

Publication numberOT-2026-000090261 · never reused
Internal UUID01a0ae9c-4290-70b0-ba78-72a1fd02b0c8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090261
StatusPUBLIC

Content hashes

Canonical text9bce3310bae9e50b843e16091623536ec36564e95cff5f6c32a933fe21127cae
Markdown3ab3529101d2044226b16526badcbec2628998e19193c74721d093f6e2ddcc94
PDF
Publication page2b71ce2712e3651965ca44cb0dd24ba80e4828d51ded9819bf9b1a1cf2db2219
Manifest22d0ba5da6a229848b7b97dd55bddf4a41096b76774939147da8fba761389972

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
Signature0N9ZtSQ+DnTasXM+wTog6AwOz64siMWK3whX2xb/AiQidUC7lJbOZBHbrESCDVLMr9smnTS4iy28AZWpDqE/Dw==
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

2026-09-17T09:46:20.322597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090261
observed 2b71ce2712e3651965ca44cb0dd24ba8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:20.299794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090261/manifest.json
observed 22d0ba5da6a229848b7b97dd55bddf4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:20.277477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090261/publication.md
observed 3ab3529101d2044226b16526badcbec2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:20.259237ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090261/publication.txt
observed 9bce3310bae9e50b843e16091623536e...
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.