OpenTechnical

OT-2026-000089506

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000089506) never changes.

Identity and time

Publication numberOT-2026-000089506 · never reused
Internal UUID01a0ae9b-db02-7692-b626-823c1642b3eb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089506
StatusPUBLIC

Content hashes

Canonical text53f99ea8b3b0a68f97adbe4196b2f07988a86013645c34d6d4aa43567a180a01
Markdown2038a13a862ce4b4e17ddb399a69b4c15081872774c8efd5e7125934bf32706e
PDF
Publication paged359484ad4c263d557f296669607cccf8b54fe659f3154f6f33d1b0d34861f96
Manifest11e553d7cfbdda111962a6a23000288e6eb963af6cd3a04414e21140bd6c60b0

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
SignaturemTqDSdOhwuGKQemkZGak4osi6vnRt2tGus5YfDEZNKAggrTb67+Rz3czP/uM9WJnEhKOpYzZKpmfoLZkBc9rDQ==
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

2026-09-17T09:47:39.659650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089506
observed d359484ad4c263d557f296669607cccf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:39.642502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089506/manifest.json
observed 11e553d7cfbdda111962a6a23000288e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:39.626593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089506/publication.md
observed 2038a13a862ce4b4e17ddb399a69b4c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:39.609707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089506/publication.txt
observed 53f99ea8b3b0a68f97adbe4196b2f079...
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.