OpenTechnical

OT-2026-000091380

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, pump fed, 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-2026-000091380) never changes.

Identity and time

Publication numberOT-2026-000091380 · never reused
Internal UUID01a0ae9c-f16d-730a-9f65-72486e704684 · 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-2026-000091380
StatusPUBLIC

Content hashes

Canonical text103f0932880489f76c6f04ce01e53c7ea0a7a68465db0c4b5433aa681320e3eb
Markdown068ece5f1b01d5b7c02f91eba9b3bda764471880867fd45aa644a35adafb7435
PDF
Publication pageb8a973deca98f04e2d1da2f361516913d25b86db6b78db81ac22c7d1c864b15e
Manifestb2229c4a5d6fa711ae342797ceec3938261f3de694892844a691fd299d97e44e

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
SignatureNsbjOjx0bHqnCU/CNhe/YLYn5A0SO+BiLH6rOmq52HtuLXpaL+fMlP2NcD4DtBB61OJoAwDR5NXICgq7qgCmDg==
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

2026-09-19T16:41:35.889616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380
observed b8a973deca98f04e2d1da2f361516913...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T16:41:35.751119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380/manifest.json
observed b2229c4a5d6fa711ae342797ceec3938...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T16:41:35.521255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380/publication.md
observed 068ece5f1b01d5b7c02f91eba9b3bda7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T16:41:35.000987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380/publication.txt
observed 103f0932880489f76c6f04ce01e53c7e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T09:43:36.086511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380
observed b8a973deca98f04e2d1da2f361516913...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:36.068860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380/manifest.json
observed b2229c4a5d6fa711ae342797ceec3938...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:36.050356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380/publication.md
observed 068ece5f1b01d5b7c02f91eba9b3bda7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:36.032580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091380/publication.txt
observed 103f0932880489f76c6f04ce01e53c7e...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent