OpenTechnical

OT-2026-000073919

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, pump fed, manifold pressure sensor, pulsed 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-2026-000073919) never changes.

Identity and time

Publication numberOT-2026-000073919 · never reused
Internal UUID01a0ae93-2b8e-70e8-8bb1-ef529f83f031 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073919
StatusPUBLIC

Content hashes

Canonical text33292141f7696b59955d176726aeb3ec4cbe29dd211ca24d2305f55f6c9dd6cb
Markdownc76f91c4bab88f0e7935a6cc145d73727af30c5cb4b66dd8217c31f38377fb69
PDF
Publication page11d4f1b8e91fb0e73ce82fc05b86f468479f1106250c84d6592f2e3bd313ad0c
Manifest5c386e936d36dc4273709bc82539e086d6370d1a28bcc3e898feffb58bc3b703

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
SignatureFC+BQDywnRmbtzGEaCgoie0UfHxXSPtGtOfkNxIK3S8xC10i1bMa4O3ucNoG9HiydGrayUSINqe1/JCf33/hDQ==
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

2026-09-17T10:20:11.762384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073919
observed 11d4f1b8e91fb0e73ce82fc05b86f468...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:11.740056ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073919/manifest.json
observed 5c386e936d36dc4273709bc82539e086...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:11.719857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073919/publication.md
observed c76f91c4bab88f0e7935a6cc145d7372...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:11.700713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073919/publication.txt
observed 33292141f7696b59955d176726aeb3ec...
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.