OpenTechnical

OT-2026-000091372

Publication integrity record

Foam pad vacuum gripper, two zone face, three 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-2026-000091372) never changes.

Identity and time

Publication numberOT-2026-000091372 · never reused
Internal UUID01a0ae9c-f16d-770c-9bf5-b9cfea450096 · 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-2026-000091372
StatusPUBLIC

Content hashes

Canonical texta0af2dc37ec3e02572c36a95d1c03d4389fafc624ae3f9319b01dee256e24470
Markdown2c4912554ac939fb066ee29d8d9a2480adcaa39ff88431b9b07922fb317bc72f
PDF
Publication page62a26fee080385869c0045ab4a16a08bc73df2ed04ca3aa6000d6baa9f8a3b3b
Manifestfd4fc0e8d670c8debe578a759221b4d0f5986cacc433dc1adddc66869f0242a4

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
Signaturey/aE2LB3ZCphGQ6YSAas8sT/mgC066MPkjTJgQzRfD/mCoz1nblCQiyRF6r7yIPR4CMc08Yt2APIAB5my76qCQ==
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

2026-09-17T09:43:35.487268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091372
observed 62a26fee080385869c0045ab4a16a08b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:35.468886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091372/manifest.json
observed fd4fc0e8d670c8debe578a759221b4d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:35.450635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091372/publication.md
observed 2c4912554ac939fb066ee29d8d9a2480...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:35.433787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091372/publication.txt
observed a0af2dc37ec3e02572c36a95d1c03d43...
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.