OpenTechnical

OT-2026-000004563

Publication integrity record

Porous face vacuum gripper, per zone isolation, two outlet manifold, ejector fed

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-2026-000004563) never changes.

Identity and time

Publication numberOT-2026-000004563 · never reused
Internal UUID01a0a91c-10fa-7ff7-a7bf-c97b2baa1cb7 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:26:23.996311Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004563
StatusPUBLIC

Content hashes

Canonical textf5919eff9a195cfe565ca654c769d0f909f55cc4acd502f7109e10407678d2f7
Markdownf630cc7b73ff6a5dbb642536260ce0e8bbd6c99443c722f8b24d9b9aaacacd0f
PDF
Publication page503f912e8add6696cd9d2cce284785a4b608ce1ca6cde72f66c899613160d3d4
Manifestc83a064edbba53eb256a0afeb20942f2ba55b42f081d3e23c6d3f15fec7cd867

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
Signatureh89uaZhblRbdimYJ/ZArFpD0kc+cHUjiJxoWVkSVMPhXDMvMjJ+lUTQUVTN5ztYAIvp24BLMKu+g2JSOPfDIDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:30:14.448031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004563
observed 503f912e8add6696cd9d2cce284785a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:14.434947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004563/manifest.json
observed c83a064edbba53eb256a0afeb20942f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:14.424076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004563/publication.md
observed f630cc7b73ff6a5dbb642536260ce0e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:14.411263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004563/publication.txt
observed f5919eff9a195cfe565ca654c769d0f9...
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.