OpenTechnical

OT-2026-000015690

Publication integrity record

Four pad foam vacuum gripper, four 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-2026-000015690) never changes.

Identity and time

Publication numberOT-2026-000015690 · never reused
Internal UUID01a0ae6e-0c4b-78cb-9d38-6ef099ebe52c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015690
StatusPUBLIC

Content hashes

Canonical textf3c59f7e069d480e582cab5d224b774f328f21434fcffeae2508ad7507c52651
Markdownf74a1ad1049c567fc3a3e55eddcded919ea47f5e92af46c4212badd9ab8d4e53
PDF
Publication pageb42a13f8e9265036a493b407d4f9613748e321c1e93228756d561dbbaa6e3a34
Manifest1e1ef8ce5870add49bfffd1e76f3250f87ab64ab566ada10f8ebd5c780130c63

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
SignatureijLjKtpLoAfmyz3AsS+oOMNWcGqrSwI2Qu3f6fAxKxUinx/8j+v4rw/KSZUow7qWWs86rPym3LpWUchnNYC8DA==
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

2026-09-17T12:04:57.884557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015690
observed b42a13f8e9265036a493b407d4f96137...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:57.866485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015690/manifest.json
observed 1e1ef8ce5870add49bfffd1e76f3250f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:57.845664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015690/publication.md
observed f74a1ad1049c567fc3a3e55eddcded91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:57.827917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015690/publication.txt
observed f3c59f7e069d480e582cab5d224b774f...
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.