OpenTechnical

OT-2026-000013890

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, common isolation valve, single stage ejector, pulsed blow-off before set-down

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-2026-000013890) never changes.

Identity and time

Publication numberOT-2026-000013890 · never reused
Internal UUID01a0ae6d-8dea-7bee-b6c6-04e70ea0dcea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013890
StatusPUBLIC

Content hashes

Canonical textab88556f86ad7aa65677ec5c7f460a854b3268809bb7cafab3f356d0e27f5e24
Markdownd0e123547a3cc6e9eec843fddfe4e4c6257ac1cf132c7c50fc677a1a57c10fe5
PDF
Publication page3772dfe6f5be6208c57e905e2d4d10c35796a685728cb4b7de46e1e535d49028
Manifest9d5463695c83f2a4c78d7b3300242207d786a9302b571c0d93f4f55fd4af4846

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
Signature7TXu2TM/Nvx1qWU6NaMGtT91g7WXKgL4ewYPVXmLTY91CQZ8KnK4sk08HKsY50qrOSiHvHb5M8hL1asfbdjDBA==
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

2026-09-17T12:09:00.787109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013890
observed 3772dfe6f5be6208c57e905e2d4d10c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:00.768917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013890/manifest.json
observed 9d5463695c83f2a4c78d7b3300242207...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:00.750052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013890/publication.md
observed d0e123547a3cc6e9eec843fddfe4e4c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:00.731567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013890/publication.txt
observed ab88556f86ad7aa65677ec5c7f460a85...
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.