OpenTechnical

OT-2026-000021550

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, manifold 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-2026-000021550) never changes.

Identity and time

Publication numberOT-2026-000021550 · never reused
Internal UUID01a0ae6f-865e-7a84-9d07-2859501ac338 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021550
StatusPUBLIC

Content hashes

Canonical textf8f25d0337a31d4093da733c0147f2625bdfc986c48289be34c1b98b3d417760
Markdown25442042e3977224cffce6625d70ed65cb2c24ac67e3ee9a59bae60b065da3c0
PDF
Publication pagee0d4580eea15d880f584bc94da2bfce9e0ddf8191c6c9fbc33d4879b687df66b
Manifest6433c625107b1168846f67f6278aafe8332af23809d9e6e115f1c9774767028e

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
Signature25s0VpMy+lCJ0sjupZ+DLfrVinflUsEirUtMLZhrdS1Upivn4k3+hbWn4QjVIrbLbW0FzrhmXKV5a+oP3mIrAA==
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

2026-09-17T11:55:28.274043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021550
observed e0d4580eea15d880f584bc94da2bfce9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:28.255347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021550/manifest.json
observed 6433c625107b1168846f67f6278aafe8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:28.238081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021550/publication.md
observed 25442042e3977224cffce6625d70ed65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:28.221222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021550/publication.txt
observed f8f25d0337a31d4093da733c0147f262...
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.