OpenTechnical

OT-2026-000081011

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000081011) never changes.

Identity and time

Publication numberOT-2026-000081011 · never reused
Internal UUID01a0ae96-b976-7812-b22d-630c8ee48428 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081011
StatusPUBLIC

Content hashes

Canonical texta38fe884902d7e8a2e688127abb1146893bbe6b3f1e698f816be289164205f9e
Markdownef0da0c2df00b769009b5fdaa76a23da7cc930cb4a6b58c0f850862f4cebb1d1
PDF
Publication pageb81af2741bd1f978199dc065855dc44ed957b3af34fc69ae8b46c7e3f8f796b6
Manifest62b198e3be054013ccd62b5996030ca154d7a0f9ec499a4c48f554a947e7919c

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
SignatureEAdeGDpKyS3SzrJCD5dktuyo/nGfIU9KzMy39CqITt8IHoazjbsqC9PehEzT31boHE5TWIG5ex7xbPFdJAQzDQ==
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

2026-09-17T10:02:17.982844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081011
observed b81af2741bd1f978199dc065855dc44e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:17.966299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081011/manifest.json
observed 62b198e3be054013ccd62b5996030ca1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:17.949510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081011/publication.md
observed ef0da0c2df00b769009b5fdaa76a23da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:17.931862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081011/publication.txt
observed a38fe884902d7e8a2e688127abb11468...
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.