OpenTechnical

OT-2026-000047835

Publication integrity record

Foam pad vacuum gripper, two 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-2026-000047835) never changes.

Identity and time

Publication numberOT-2026-000047835 · never reused
Internal UUID01a0ae7f-c421-77ee-a482-8954e344f6be · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047835
StatusPUBLIC

Content hashes

Canonical textb01a42544e850bbca5ba4de32bfff2c8fe6ff14b121a0d3d32d3625383bf35a2
Markdown68eb96bd3ee022824c12f1b2fe282ad55a372fcc02a4eaa889ab5e844be9d45d
PDF
Publication page50c459584c9db07f1715e3df942ee3f9570c1e321a4105935a051e7ed7fa7ceb
Manifestc3ebcac3e37150af755e3fc976e3e8e8c3af3e72aff0f28bc068855e533b4d48

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
SignatureHEKjj7tJxYbAVoHyPuZsuOPAG5gQdhrK2dSnpJjZyene8M2C5LGaSZJTdPqs8VIdeMmCEexa/OZif1mODYKdBQ==
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

2026-09-17T11:05:44.994911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047835
observed 50c459584c9db07f1715e3df942ee3f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:44.977422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047835/manifest.json
observed c3ebcac3e37150af755e3fc976e3e8e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:44.957965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047835/publication.md
observed 68eb96bd3ee022824c12f1b2fe282ad5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:44.939305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047835/publication.txt
observed b01a42544e850bbca5ba4de32bfff2c8...
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.