OpenTechnical

OT-2026-000091573

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, sustained 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-2026-000091573) never changes.

Identity and time

Publication numberOT-2026-000091573 · never reused
Internal UUID01a0ae9c-f16e-78a0-9d07-4049fe5023a8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091573
StatusPUBLIC

Content hashes

Canonical text99ff58cc80114a70fbe1c94ca32d275d6053f60123ff04b88f4e811a82b6a691
Markdown598345f3616c1ad25541b4211f2b9d8f8e86e8ca40288b532a779a42c366b9b5
PDF
Publication page8fcaa25ff1602ca36c2e489d40927f85d3ca5b89a6ce14de07df3834ef5496ba
Manifesta3e40077bae992f255e183197050ffa0f0b14afcfb9a45a336bdba8d1e5cf502

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
SignatureBsK3zO/SK9ExaR/idFNq/C0MF5a50DxEMI9Drd84TBfc5JugLjN6EoAsuUR/+PZgQN0pKA0tDZOBlL5Dt3mPBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:43:50.687008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091573
observed 8fcaa25ff1602ca36c2e489d40927f85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:50.671349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091573/manifest.json
observed a3e40077bae992f255e183197050ffa0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:50.653780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091573/publication.md
observed 598345f3616c1ad25541b4211f2b9d8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:50.636755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091573/publication.txt
observed 99ff58cc80114a70fbe1c94ca32d275d...
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.