OpenTechnical

OT-2026-000015491

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, two stage ejector, 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-2026-000015491) never changes.

Identity and time

Publication numberOT-2026-000015491 · never reused
Internal UUID01a0ae6d-ef4a-7a5e-b92d-63e7c308ae79 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015491
StatusPUBLIC

Content hashes

Canonical textcd2969367134b42afcafbe7a84192a9420abf6ac1f3cbef86a56f74985a6a1b9
Markdown317ed0c27f5fa60f7c9d63244f10fffeb959b3d292035102094852a485d17e35
PDF
Publication page035c6075c868b99b74a51ae9d90b1d433becd7445a55f5efe9a7be3ec5a38c70
Manifest5ddb0ffaaba6ebec57c26468a5c142da188e7d765719d3264b7048ab43111639

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
Signaturei6mI9oUJWxo7ZGYx+MYDwicwj/VBs6kHE3+DZmkdzsnIbDYTKJ8U3j4UL2qap/652T+f+F7y1+xVDJwdC4MtDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:06:15.312469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015491
observed 035c6075c868b99b74a51ae9d90b1d43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:15.293642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015491/manifest.json
observed 5ddb0ffaaba6ebec57c26468a5c142da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:15.275597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015491/publication.md
observed 317ed0c27f5fa60f7c9d63244f10fffe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:15.256742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015491/publication.txt
observed cd2969367134b42afcafbe7a84192a94...
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.