OpenTechnical

OT-2026-000048695

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed 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-2026-000048695) never changes.

Identity and time

Publication numberOT-2026-000048695 · never reused
Internal UUID01a0ae80-c32b-768f-ae8e-4ca546fe0537 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:29.321882Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048695
StatusPUBLIC

Content hashes

Canonical text98454a241209a3cef23c7b4a90f3795e98abd72919fe317590abd94468d17017
Markdown0631ecf354b6935b0b92a879307805f0991bdfd6089e4267d0123baf72863382
PDF
Publication pageac7e4dad94d80b2992941a6332c5c14dc700dc12129da7436390efb1d9b06573
Manifestae73927f9cd80b089f8788931384c7608db76a50e9d06fb478010d5b115ac537

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
SignaturexiJAm5ikanBxMa3ghwiZWFzP5vgoDYzIMvzvVxaHOb5sWqld7OOHV7CP2bUcPOKKjKQSfbg03/z8ixNnOlq1Cw==
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

2026-09-17T11:04:19.634495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048695
observed ac7e4dad94d80b2992941a6332c5c14d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:19.613388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048695/manifest.json
observed ae73927f9cd80b089f8788931384c760...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:19.593952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048695/publication.md
observed 0631ecf354b6935b0b92a879307805f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:19.575592ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048695/publication.txt
observed 98454a241209a3cef23c7b4a90f3795e...
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