OpenTechnical

OT-2026-000071878

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, vented 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-2026-000071878) never changes.

Identity and time

Publication numberOT-2026-000071878 · never reused
Internal UUID01a0ae92-1e93-7281-8393-5eb9508f9387 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071878
StatusPUBLIC

Content hashes

Canonical text9370556c327ae3e29d51bfaf9b530edc2b7a6ab9aaa056c0aa4ba405a42646c1
Markdown0f1b09c406cff60d45edef5676f1c5f874b163e89a0f5d1407bca840fabbf993
PDF
Publication page31ee4fa841a0e48ad080c96af5fb8e37ff8ef17f1ffe156d475dd715b0d632db
Manifest2f75642771b323c8faaf58930c96bfeefc99d28759a449ce6a9e8c7a976fc982

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
Signature91aLQhErKfqJl5V3UT+eX61kR4P8YR8b70yGviaJlOcutIktKL31SBzmItbUghmpDJJol7U+dEvhXEQC4jsBCA==
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

2026-09-17T10:24:34.881910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071878
observed 31ee4fa841a0e48ad080c96af5fb8e37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:34.864803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071878/manifest.json
observed 2f75642771b323c8faaf58930c96bfee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:34.849080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071878/publication.md
observed 0f1b09c406cff60d45edef5676f1c5f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:34.832713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071878/publication.txt
observed 9370556c327ae3e29d51bfaf9b530edc...
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.