OpenTechnical

OT-2026-000055933

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, 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-2026-000055933) never changes.

Identity and time

Publication numberOT-2026-000055933 · never reused
Internal UUID01a0ae87-0a4a-7e36-8661-cea365442b9d · 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-2026-000055933
StatusPUBLIC

Content hashes

Canonical textb9ee619d72bb887df9cfef78be651269cc825c4bf8173f3bd574feae23da8982
Markdownbb878a2d2fdb4b894969d3fb9c22503a8aca2d458ac2a6542e2ac749768ade7a
PDF
Publication pagebb28e9248acdfcb8e2d0ee6a5266ee1f12410a9b9dc59bf10671fab2d47e1da0
Manifest346b9e273175c8127d4e7f1dedc2fccf15677912e5168d515c6b9a091006c520

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
Signaturew+O1VUhjW6y16qFSkhblz7oINzUuS7sEdyX9ebvwU4YeG+bm5CViLvUhUYL99ymM/yzdrfLkeEg7t04/MKpjCg==
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

2026-09-17T10:51:26.921380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055933
observed bb28e9248acdfcb8e2d0ee6a5266ee1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:26.903832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055933/manifest.json
observed 346b9e273175c8127d4e7f1dedc2fccf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:26.885442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055933/publication.md
observed bb878a2d2fdb4b894969d3fb9c22503a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:26.869563ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055933/publication.txt
observed b9ee619d72bb887df9cfef78be651269...
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.