OpenTechnical

OT-2026-000043885

Publication integrity record

Single cup vacuum gripper, three stage ejector, supply line pressure sensor, sustained blow-off after 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-2026-000043885) never changes.

Identity and time

Publication numberOT-2026-000043885 · never reused
Internal UUID01a0ae7b-d677-7451-83f5-32ad274a0628 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043885
StatusPUBLIC

Content hashes

Canonical text2b98af7905a9ea9e90d0a603ec31a08f99cfca5c4651117022d5b3d7c5615362
Markdown9741a86b7daa8e493bd9a6514e53783ce46da98e9a57c400db087ee3a452e561
PDF
Publication pagee2d19840a6a3351a7f5a58243f0e62a282294fefed1df253f1378717303cdf01
Manifest4975904ccdc66d5fc4e4e6a11b68a3a516d441de20d47500b93b9f99921fd2c7

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
SignatureEMeGSwdbjTB1SJY1UacnCLyhYcu/192m55fqJl5o3ZBWvC9Vr6gJa0S7w5QmAP4Di+NTdU9GkY+cUUBN2VKkDw==
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

2026-09-17T11:12:12.996641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043885
observed e2d19840a6a3351a7f5a58243f0e62a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:12.979320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043885/manifest.json
observed 4975904ccdc66d5fc4e4e6a11b68a3a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:12.958833ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043885/publication.md
observed 9741a86b7daa8e493bd9a6514e53783c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:12.940116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043885/publication.txt
observed 2b98af7905a9ea9e90d0a603ec31a08f...
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.