OpenTechnical

OT-2026-000055597

Publication integrity record

Single cup vacuum gripper, common isolation valve, 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-2026-000055597) never changes.

Identity and time

Publication numberOT-2026-000055597 · never reused
Internal UUID01a0ae86-a103-78c2-8510-7a3d6925a566 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055597
StatusPUBLIC

Content hashes

Canonical text8746686ea576b7d091655b69e2818e884785e80d95b3634fab042022c6a0965e
Markdown9b382ca993ffc69d400512891c42cc8545ae346eeabda79091652bb52b75693b
PDF
Publication page124adeee9770ca3594f814adf9765bdd30e5b0106fe69d0fa07b98a641de21c1
Manifestf9ae515f9e61dd9cb16a178e49f8eb271453b44d79eaf013432981ca7fdce33c

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
Signature2JUlVpLffWUNfS9iUzyYhQ5rpnpdkUkOu2LsbYf9OrEBifKobmN6Zn/mdganbDCvgv1du7/togwjJC3DlLpvAw==
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

2026-09-17T10:52:50.249123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055597
observed 124adeee9770ca3594f814adf9765bdd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:50.230641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055597/manifest.json
observed f9ae515f9e61dd9cb16a178e49f8eb27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:50.201110ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055597/publication.md
observed 9b382ca993ffc69d400512891c42cc85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:50.174953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055597/publication.txt
observed 8746686ea576b7d091655b69e2818e88...
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