OpenTechnical

OT-2026-000055877

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000055877) never changes.

Identity and time

Publication numberOT-2026-000055877 · never reused
Internal UUID01a0ae87-0a49-773e-be35-79300a57dcfd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055877
StatusPUBLIC

Content hashes

Canonical text77303475a61149c8c85a8852470f743ab7bd95c3b9f54887a5a9f83b278282a7
Markdown1ba814743fc2c65eb4ecad8d8cbb8bef76a92fec93340611b6ad89ca2b02713a
PDF
Publication page21b791b33682a7ec26c8393d817389fb10e19d7df0fe93fb3a22bd24237b689a
Manifestac3cb01f3c9d35db0626ccc61dffc54f00455f4c37592ae98d6f7ed67a46b852

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
SignatureKt0YpxvcpDpPp3z0mKgvdkxmEXpfO3zLBN/+JlIxAwwL63T84ULJmSH3cZHwha9+pC6F2+6MAYUr1hWjgaGHBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:16.762810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055877
observed 21b791b33682a7ec26c8393d817389fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:16.744764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055877/manifest.json
observed ac3cb01f3c9d35db0626ccc61dffc54f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:16.725301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055877/publication.md
observed 1ba814743fc2c65eb4ecad8d8cbb8bef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:16.708203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055877/publication.txt
observed 77303475a61149c8c85a8852470f743a...
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.