OpenTechnical

OT-2026-000078269

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000078269) never changes.

Identity and time

Publication numberOT-2026-000078269 · never reused
Internal UUID01a0ae95-7c27-776a-90f0-7bb1a05fe704 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078269
StatusPUBLIC

Content hashes

Canonical textff4a4607171d863a2bb04449bcda047d0cb8168a3012d6ba853163610f513da4
Markdown3504b1ccea99284757e1e82b861290df8d88f8b9892c11ec319156eade943ba6
PDF
Publication page40da5cb6a0e98dbb357f2a95448e08a5bb33b6c250d37b928c6a7b33cba0d759
Manifest284b96c52a5c0b162e681b89b9865b9d9e60e0b6adde8a38bada88fdc0566106

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
SignatureCYJE9ljYrxZbYiwsnAbUXt4RX/V/xTb1Lj4hWQaElXJvOzJtwqVLB+A+CnnLAMHmX+Pb4MhJsO0RvSLvyOYODA==
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

2026-09-17T10:06:13.841727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078269
observed 40da5cb6a0e98dbb357f2a95448e08a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:13.822524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078269/manifest.json
observed 284b96c52a5c0b162e681b89b9865b9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:13.803324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078269/publication.md
observed 3504b1ccea99284757e1e82b861290df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:13.784850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078269/publication.txt
observed ff4a4607171d863a2bb04449bcda047d...
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