OpenTechnical

OT-2026-000006887

Publication integrity record

Porous face vacuum gripper, common isolation valve, three stage ejector, vented 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-2026-000006887) never changes.

Identity and time

Publication numberOT-2026-000006887 · never reused
Internal UUID01a0a96a-dfce-7ae9-8479-182b1dad8d7b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:52:28.753334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006887
StatusPUBLIC

Content hashes

Canonical text1300d2cd174fc029f26f77e2c05d789e07e99ed0f2d047dbe12febb387bbcafc
Markdown153f3e84bb95a32e1761be0b1a4e39204b9b17d8510422f09f4ddb7ab561d0d4
PDF
Publication page042bafc086de87855d1f04bacea22f469604235bd7251ca67534e9dfc7af807b
Manifestee781b588081884502147d4e7844bae1d7a3311535a64c9f34ee747dd8b4e7c3

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
SignaturekoRQ03tiYAK64KzQZUaA4YCZYymFc51Irrlr/rK30sV64QAR2EsgNICBtjOeBMD++slHz97489RszKuG7A4zDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:25.422273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006887
observed 042bafc086de87855d1f04bacea22f46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:25.409562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006887/manifest.json
observed ee781b588081884502147d4e7844bae1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:25.398724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006887/publication.md
observed 153f3e84bb95a32e1761be0b1a4e3920...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:25.385258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006887/publication.txt
observed 1300d2cd174fc029f26f77e2c05d789e...
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.