OpenTechnical

OT-2026-000029699

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, 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-2026-000029699) never changes.

Identity and time

Publication numberOT-2026-000029699 · never reused
Internal UUID01a0ae73-5e23-7436-88a3-a2769c2f3307 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029699
StatusPUBLIC

Content hashes

Canonical texta05d973b4064c3d145e16398a99d4d369595c0e34cff13975a4573d95af97395
Markdown017b9e502b8f0c36e931cb106a5b22cb0a29858c9b88052ba1ebfa9799949774
PDF
Publication page84438271eb67707cef4fa0955fa0855a3c3fd29b888cd1502eaf12462bd6bc6c
Manifest6f346ed3a9f07625bd2f5d1429c337b0636d37491c264a3d8802443ce27060d5

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
SignatureKJwpF2uJHJYkp9u0s/4rffU770adT3lthhQHJrZl31LjTj+qsVa5c1jLN1guM4hXusGBaQl/95RcCsYZ2QCYBQ==
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

2026-09-17T11:39:25.680416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029699
observed 84438271eb67707cef4fa0955fa0855a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:25.662917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029699/manifest.json
observed 6f346ed3a9f07625bd2f5d1429c337b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:25.644344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029699/publication.md
observed 017b9e502b8f0c36e931cb106a5b22cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:25.623362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029699/publication.txt
observed a05d973b4064c3d145e16398a99d4d36...
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.