OpenTechnical

OT-2026-000091231

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, three stage ejector, pressure sensor per zone, sustained 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-2026-000091231) never changes.

Identity and time

Publication numberOT-2026-000091231 · never reused
Internal UUID01a0ae9c-f16c-7a93-905a-8a4fe36118ea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091231
StatusPUBLIC

Content hashes

Canonical text5c26fd3d3da986a0d68bec01ef56b1ecfe8b86ad023e83f03c779718e66a19f5
Markdownc1e7e0d9d17bec690a2ae031eaf418f1dac70fd77d6fe59985c3a275f7fc5b1e
PDF
Publication page232827d221c76656efbddda81ee6d078a5433d5386e89510a6f20444d998a6bd
Manifestec91e2dafd50becf055e93c666a4c35f2362ab9a6fcd3ff07ce9ed0c83fdcf57

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
Signature2l/X6yDSVZ85MsjBcpqrwwmRaOHuT8EkQ/FfzJc9YBil4WNBTxUzASuaWGJgo4hmshNithwQO3vMgQtF9koqBw==
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

2026-09-17T09:43:24.226748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091231
observed 232827d221c76656efbddda81ee6d078...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.209721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091231/manifest.json
observed ec91e2dafd50becf055e93c666a4c35f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.190900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091231/publication.md
observed c1e7e0d9d17bec690a2ae031eaf418f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.173710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091231/publication.txt
observed 5c26fd3d3da986a0d68bec01ef56b1ec...
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.