OpenTechnical

OT-2026-000027707

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, 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-2026-000027707) never changes.

Identity and time

Publication numberOT-2026-000027707 · never reused
Internal UUID01a0ae72-699a-72bb-87ab-cd5e0c04f001 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027707
StatusPUBLIC

Content hashes

Canonical text237e3bea5ef82011e114dd25fa2e3252ed52d8b0cda155de9ec6c92bc6e89f45
Markdown2fcfa7139db3b600172257719f84d580007fd1fbb65adbdc59a688184235ffbb
PDF
Publication page50d3bb978bf0a0c8a2b88838cabab85ec7bb015a6536efd0f47ca7e1a72d82c1
Manifest64e0441ebc351bf73bdf37e455641fa203f40002e856ef5443cce0ca0167ce7e

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
SignaturezmfKT/ReMJBLT4zth8fBa5/3l7Xs/KZSie3EVvQACV9QFGnDyttEVag3x2HWEIzXT9bXKkSHYVLTTgJvE9VGAQ==
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

2026-09-17T11:43:15.579217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027707
observed 50d3bb978bf0a0c8a2b88838cabab85e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:15.560883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027707/manifest.json
observed 64e0441ebc351bf73bdf37e455641fa2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:15.543690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027707/publication.md
observed 2fcfa7139db3b600172257719f84d580...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:15.526206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027707/publication.txt
observed 237e3bea5ef82011e114dd25fa2e3252...
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.