OpenTechnical

OT-2026-000084389

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, 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-2026-000084389) never changes.

Identity and time

Publication numberOT-2026-000084389 · never reused
Internal UUID01a0ae98-5b62-7dc0-93c4-334761199178 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084389
StatusPUBLIC

Content hashes

Canonical text5dd5f28d1936b5a44bb298f60cf00a57c9ea1d68e3dd7f61d3362946c7bfcf42
Markdownfb60ab26c4e5f290270d31399dbb4e7ef0430b7a2b175846f87a5238337f6cbe
PDF
Publication page32b7d603bda3769d1d9b587eed67605e6b65d7e41d9d2bc00ee2cd830269168c
Manifest8fe59004b7aa8ad46c40af4be97193474e4ddf1f7ab6fc0ba1b4b1c66e90239b

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
SignatureBTaWyXDgj0A3YBTq5aUmTVwpiRV1eiCHiSNLcaJAnn6QZsD6Jg9Wr45V1Ek6EyjuXC7ixYX7nGx7vUXed7YcDg==
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

2026-09-17T09:56:19.875844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084389
observed 32b7d603bda3769d1d9b587eed67605e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.859391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084389/manifest.json
observed 8fe59004b7aa8ad46c40af4be9719347...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.843098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084389/publication.md
observed fb60ab26c4e5f290270d31399dbb4e7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.825660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084389/publication.txt
observed 5dd5f28d1936b5a44bb298f60cf00a57...
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.