OpenTechnical

OT-2026-000013557

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, 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-2026-000013557) never changes.

Identity and time

Publication numberOT-2026-000013557 · never reused
Internal UUID01a0ae6d-6fcb-70fc-9dae-3c275d68591e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013557
StatusPUBLIC

Content hashes

Canonical textb686a97ee7ee1349c180396a0facf5d7bcae58cef7e0979068f86e48aea8e7d0
Markdown212fc87d56eec12e3f03f97acc41341d4ed42521429aeb201cf88409020c0ac2
PDF
Publication pagef7e4b8ef7c7157a52271054bbc10d614418430bf4122ba5a2f911ad26b716605
Manifest9a4beecb1794ed0b934bb8ad56dd5620ea9f07480be11232252effe13412e254

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
SignaturetizB/SwSM3p8Dxa2NpXzpOeCLyzOptyiU5fTMS+mmo1gmt0uzYbyQyAVNbejlv8aB9jyy099uUCeK2Nigm1UDQ==
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

2026-09-17T12:10:06.009831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013557
observed f7e4b8ef7c7157a52271054bbc10d614...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:05.991657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013557/manifest.json
observed 9a4beecb1794ed0b934bb8ad56dd5620...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:05.973368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013557/publication.md
observed 212fc87d56eec12e3f03f97acc41341d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:05.953267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013557/publication.txt
observed b686a97ee7ee1349c180396a0facf5d7...
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.