OpenTechnical

OT-2026-000089049

Publication integrity record

Foam pad vacuum gripper, two zone face, six outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000089049) never changes.

Identity and time

Publication numberOT-2026-000089049 · never reused
Internal UUID01a0ae9b-daff-751a-a2dc-13ee164bb674 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089049
StatusPUBLIC

Content hashes

Canonical text7cd2ca98892581c96ae4e121ed5320be2490e85130bb995ad8bfffe504a7f77b
Markdown1475ab0dcab0755a50d5c5025d3a55794533483e5dcb20fff948b9e11b6efd34
PDF
Publication page593c7edf16b89978e169854f0a4b05e593dfe41134eec4c96c940d9121d61b6b
Manifest874062429dea66342fc3e01dd13c4013ee703a18d7df1fb8a3c14f8b7750c3ca

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
SignatureZYL1Gh1Tgwot1hEJPbzX5XQOIHX6MnL1HqJ7XRGmd/743vbZglFx5BOEkK1Q1IrdxemtdoHuTo+Auhxow7mHBA==
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

2026-09-17T09:46:56.876687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089049
observed 593c7edf16b89978e169854f0a4b05e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:56.859373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089049/manifest.json
observed 874062429dea66342fc3e01dd13c4013...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:56.841385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089049/publication.md
observed 1475ab0dcab0755a50d5c5025d3a5579...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:56.823369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089049/publication.txt
observed 7cd2ca98892581c96ae4e121ed5320be...
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.