OpenTechnical

OT-2026-000073998

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000073998) never changes.

Identity and time

Publication numberOT-2026-000073998 · never reused
Internal UUID01a0ae93-2b8f-7931-8355-6a8da714598c · 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-2026-000073998
StatusPUBLIC

Content hashes

Canonical text3cd4351db6434232a16a7207c208dbe95b15d3ddbd777ba4d56cd7780d1b0533
Markdown2804d2ec5cc7565a61ecba57fa2dbbc93ec36b1267a3366405c66926e474ba01
PDF
Publication page8ffe35f53c6d2d3284ac1a4485e906bc8f8dc6fa3d30841a248afbe14247e802
Manifest5311f5bed56add9d2fd7fc8c60c7cf1f16ab9e2b31a00d1c6091241fb5999cf3

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
SignatureaRKz4AJtTzB8zWRV6jFrZVlTio1uwt8aIAIIDw0enkfWWCGp+crQ2v5HZvKufUdYcMMm4SaA2KcfZCDUX2+bBw==
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

2026-09-17T10:20:17.701713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073998
observed 8ffe35f53c6d2d3284ac1a4485e906bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:17.682591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073998/manifest.json
observed 5311f5bed56add9d2fd7fc8c60c7cf1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:17.663884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073998/publication.md
observed 2804d2ec5cc7565a61ecba57fa2dbbc9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:17.646033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073998/publication.txt
observed 3cd4351db6434232a16a7207c208dbe9...
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.