OpenTechnical

OT-2026-000044884

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, pulsed 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-2026-000044884) never changes.

Identity and time

Publication numberOT-2026-000044884 · never reused
Internal UUID01a0ae7c-911c-7cc3-a74f-f2383c1e7910 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:54.474009Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000044884
StatusPUBLIC

Content hashes

Canonical texteafa22af8d5deafbe66dadd44a1e27a2c6f3f7150c7bb637346e214d026eb27e
Markdown6f7591803544f3547beff1b65a35c97148dae8a95a7a558495fd67fbc86aee06
PDF
Publication page9e9ca65bb1c64d226b1240a4dfbfeae676627385996ae0f2281846aa54af0c7a
Manifestda7f157e0a078c419658581978060fe2fe6643df42fc192367a81409eadad2f5

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
SignatureSou6tmHJrTn3/eAoqEJcLHxVJxnSFXPPJGrNaf2yQDIQvJq7QQPt434g7izPviiEB9QgDQsOLir7WePdnJl8Bg==
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

2026-09-17T11:11:32.548594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044884
observed 9e9ca65bb1c64d226b1240a4dfbfeae6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:32.528691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044884/manifest.json
observed da7f157e0a078c419658581978060fe2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:32.508901ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044884/publication.md
observed 6f7591803544f3547beff1b65a35c971...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:32.488812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044884/publication.txt
observed eafa22af8d5deafbe66dadd44a1e27a2...
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.