OpenTechnical

OT-2026-000054055

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, supply line pressure sensor, 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-2026-000054055) never changes.

Identity and time

Publication numberOT-2026-000054055 · never reused
Internal UUID01a0ae85-b3a7-7ab9-a3ed-92d39043b6dd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:53.019909Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054055
StatusPUBLIC

Content hashes

Canonical text7cb813ede86d3c430e85ba6acc1812d25daac6a72beb6b9ef2c0ba020eb76418
Markdown7280e345a3267428d694bcb1084a6bec1a6976768f6aa9a83a70b2d5484f6b6e
PDF
Publication page2a78bf48289baf50eb902ce766122f82225637ff2736c9e355abcde57f9baba0
Manifest0d1c0bc2ca30fd9f826b79a6b417c6e9f1e84b40e8efa2f02ef54ee1caac83c7

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
SignatureHullkGxIUkD+NMuyti8sHs0uwSWZDvwgHq97cBF/2j2mTeiAGxIALFltrrT9Jp3o9q5nW9AXlPP3en1qRqNRBA==
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

2026-09-17T10:54:25.708915ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054055
observed 2a78bf48289baf50eb902ce766122f82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:25.690376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054055/manifest.json
observed 0d1c0bc2ca30fd9f826b79a6b417c6e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:25.671891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054055/publication.md
observed 7280e345a3267428d694bcb1084a6bec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:25.654451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054055/publication.txt
observed 7cb813ede86d3c430e85ba6acc1812d2...
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.