OpenTechnical

OT-2026-000044172

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000044172) never changes.

Identity and time

Publication numberOT-2026-000044172 · never reused
Internal UUID01a0ae7b-d67b-738a-9e11-df41f1aec580 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000044172
StatusPUBLIC

Content hashes

Canonical text86ce74597fb7786355325f4eeb2fcda1047b2e7f8c88ab6445effc4919adf75d
Markdownb3ef8e7e7d05affbea4f3f50144b00fb03776a4cee9f50540a7a7bf97adcb391
PDF
Publication pagea288f301fc791974476c1501d2187a61528b2ded10e59b19fe3c8390ade487eb
Manifest1485f563be5aa43d0c8d49f76ba1128233bcaf5b4ab4cc21eb09447cb4b872aa

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
SignatureMmtstiHpSF0lFxUuDJuCxS98grAUtBlYvAaR+0Fc5VoNSwm9/eASqVNNSWO+BKstrm3lxwAV84Z9qKToPa/8Dw==
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

2026-09-17T11:12:36.299857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044172
observed a288f301fc791974476c1501d2187a61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:36.278623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044172/manifest.json
observed 1485f563be5aa43d0c8d49f76ba11282...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:36.258964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044172/publication.md
observed b3ef8e7e7d05affbea4f3f50144b00fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:36.238468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044172/publication.txt
observed 86ce74597fb7786355325f4eeb2fcda1...
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.