OpenTechnical

OT-2026-000071784

Publication integrity record

Three bellows cup vacuum gripper, three 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-2026-000071784) never changes.

Identity and time

Publication numberOT-2026-000071784 · never reused
Internal UUID01a0ae92-1e91-7f67-b481-c3a20158c5a7 · 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-2026-000071784
StatusPUBLIC

Content hashes

Canonical textc268df4f3754efe346abe8842dfb3089a8f1c37441f355aa38c1283ab0e48ea5
Markdownbabbe658d08a7d9aa9e2cf2827e7a8b0ef972143fa4ec8ec5d3205d7cb67c221
PDF
Publication page07b4a497b4ce9158627047063dc53762b99182dea9021f7064e7eb2b62075a02
Manifest55843870d7d77c962d67604963a91928daecac550fc53b6756b6ec75a278b341

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
SignatureWbFRGaWm1BE82iYgSXUTmn52aoDWixgVaactfmTbkmkgxTkjejZ8OvKRoQJSKSAhoX2rnreq66AoVxi7YfT/Dg==
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

2026-09-17T10:23:56.967869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071784
observed 07b4a497b4ce9158627047063dc53762...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:56.949461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071784/manifest.json
observed 55843870d7d77c962d67604963a91928...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:56.929896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071784/publication.md
observed babbe658d08a7d9aa9e2cf2827e7a8b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:56.912721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071784/publication.txt
observed c268df4f3754efe346abe8842dfb3089...
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.