OpenTechnical

OT-2026-000031390

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, two stage ejector, pulsed blow-off after 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-2026-000031390) never changes.

Identity and time

Publication numberOT-2026-000031390 · never reused
Internal UUID01a0ae74-87ad-7485-9639-83592852cab7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031390
StatusPUBLIC

Content hashes

Canonical text30f78fb353ff089d0b8680fc1f5e04baabfb2c0b7364a44696c9836113409f87
Markdown403f30888cbc469e73282b0c30a954b3668886e97cd65a0c90b4740cc4ed3f34
PDF
Publication pagebea08b9c69cc87b2fcb48eb57df59737f2940ae829fe059bb585c4fd171243e9
Manifest7a850ba9edf86da07f5133f9c9ba41563889d8f67a74901d05b8287c2e41b487

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
SignaturetohqSQ2hMYX0xL5RbUp6te+oKvyUliYaDGgCiTvePQfuQt3mJrE/S0o0XiumpaUfX/kRzmeq9A52rObinJt8AA==
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

2026-09-17T11:36:05.997250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031390
observed bea08b9c69cc87b2fcb48eb57df59737...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.979786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031390/manifest.json
observed 7a850ba9edf86da07f5133f9c9ba4156...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.961041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031390/publication.md
observed 403f30888cbc469e73282b0c30a954b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.943175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031390/publication.txt
observed 30f78fb353ff089d0b8680fc1f5e04ba...
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.