OpenTechnical

OT-2026-000079843

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, 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-2026-000079843) never changes.

Identity and time

Publication numberOT-2026-000079843 · never reused
Internal UUID01a0ae96-4376-7dae-8c5a-d46a87c4764d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079843
StatusPUBLIC

Content hashes

Canonical textb803a4a2d5223b9df623f629d74a820fb22e8b8184673c7f0516bfa737034e7f
Markdowncca7e192f83ce0401c7caae94cdec8b69dd498c9692d5b7fbb5122ccd8e501b4
PDF
Publication page60e7646e1a83f0cd21923132010b31526204de134e14f0798a561a209ed261ae
Manifestc965c2fab25907077b538758b2ff8d825078ec1bba552724d0f699b147f43229

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
Signaturey2HkMpqw5qFEvW3aX/ydsRuADfYw8eRGnZeyKX5mixw547y4mlOeebyJD+/nIUpbTpVv4LJ78wWzrWQ8imFTDg==
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

2026-09-17T10:03:43.756322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079843
observed 60e7646e1a83f0cd21923132010b3152...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:43.738061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079843/manifest.json
observed c965c2fab25907077b538758b2ff8d82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:43.718632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079843/publication.md
observed cca7e192f83ce0401c7caae94cdec8b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:43.699258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079843/publication.txt
observed b803a4a2d5223b9df623f629d74a820f...
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.