OpenTechnical

OT-2026-000013697

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, 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-2026-000013697) never changes.

Identity and time

Publication numberOT-2026-000013697 · never reused
Internal UUID01a0ae6d-8de8-7ddd-b2c8-9cac7b319bbc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013697
StatusPUBLIC

Content hashes

Canonical text760546fa70bc0065ca97da58946549e799b71c2af5f7b110618a4c78c7d33592
Markdownc590e8711b30666fff52f2801a27f1d5cdbcad731fc80f50418bd6ae4662ec56
PDF
Publication page86ef2c7e59ce92f6dfd598eb735f00c741121eb414d22f3abd377f9c638e008e
Manifest7133c408359be3e8bd919dd57ad09c628b49dad2a433b16d3135114d0cf6a197

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
Signature1glNXcn652TW7Pfut2gCSczGWsR5uUvKlbS8WyhSlMiU3Uv7eabnTkSabVn1ovccE/jZ9cJ0FoYAuLaoqDJCBg==
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

2026-09-17T12:08:39.110864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013697
observed 86ef2c7e59ce92f6dfd598eb735f00c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:39.091557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013697/manifest.json
observed 7133c408359be3e8bd919dd57ad09c62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:39.074686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013697/publication.md
observed c590e8711b30666fff52f2801a27f1d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:39.055880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013697/publication.txt
observed 760546fa70bc0065ca97da58946549e7...
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.