OpenTechnical

OT-2026-000048203

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, 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-2026-000048203) never changes.

Identity and time

Publication numberOT-2026-000048203 · never reused
Internal UUID01a0ae80-4de2-7236-a7c7-8edb213351bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048203
StatusPUBLIC

Content hashes

Canonical text774124164386cd3c4f4ec3460d06d63a640f5b3e5a0f53dcb03a4c39eac9b4e8
Markdownca9ebeb48726a8c8e658883de9f13aa7a159826a82ba8c05ea2ec953092f2710
PDF
Publication page5da0346022149bd186adf5538ff819a20ddcae903ca3394b9c2e0ee9f694aa7c
Manifest728851890c3a6cf16b1d1fa22058d353156ef7bae1c5dd7dde045b5548712b8e

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
SignatureiSOf3kgFYD0TIkvx1WLTNUHQMa89D6SArMXgdobPqAxFNqug5YrHXO21amfj0bu7M+JASE2A0KK38wZvpcBxBg==
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

2026-09-17T11:04:44.948599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048203
observed 5da0346022149bd186adf5538ff819a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:44.928730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048203/manifest.json
observed 728851890c3a6cf16b1d1fa22058d353...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:44.910171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048203/publication.md
observed ca9ebeb48726a8c8e658883de9f13aa7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:44.888253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048203/publication.txt
observed 774124164386cd3c4f4ec3460d06d63a...
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.