OpenTechnical

OT-2026-000073455

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, plant vacuum 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-2026-000073455) never changes.

Identity and time

Publication numberOT-2026-000073455 · never reused
Internal UUID01a0ae92-efb8-785e-902c-7408a72f8c97 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073455
StatusPUBLIC

Content hashes

Canonical text63eaf952d604a60b3f7b4ec7fc9422bf02e6a80de8c4f3db88924f58b25308f9
Markdown4e37d9a836abc1251feb01a52d2157f2d4b08536d9c71698e04ae8d69ce36e82
PDF
Publication page845bb8774824a6d4faef8e55dc1f7d9c36450c4adaf889d8f75700aef919747d
Manifest648826bd7e93b7ab684616890066491a4e50e4605ace8ee84e0728458aad8381

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
Signature98LrprG6GskzIpXhpiZ0ZJDIfrxa89c7rbCDTsvD49WM3nugIpLwjjLWQE7TSNvpzZYSECVAG/Sl7m6ILFWUCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:21:37.131432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073455
observed 845bb8774824a6d4faef8e55dc1f7d9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:37.114043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073455/manifest.json
observed 648826bd7e93b7ab684616890066491a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:37.096938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073455/publication.md
observed 4e37d9a836abc1251feb01a52d2157f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:37.080373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073455/publication.txt
observed 63eaf952d604a60b3f7b4ec7fc9422bf...
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.