OpenTechnical

OT-2026-000031219

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, 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-2026-000031219) never changes.

Identity and time

Publication numberOT-2026-000031219 · never reused
Internal UUID01a0ae74-87ab-7991-8545-03687948c59c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031219
StatusPUBLIC

Content hashes

Canonical text0dda92c2bc06cb8fb73cdb50de2f1621737e253dbff8f08f567a585c5df16d34
Markdown54d4dbd24c1770cb397f0d89a17a3d012d1cbc728393f9afc95dfbad17d41086
PDF
Publication page87173c3448e3d299235eaebf1470a41f4a4ad7142e051bcd7e935f3666c3e353
Manifest284e5ddf056acdf8ee1d1252a1358cfe7b880a948e12cb9d9a938a8b27a8b8d1

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
Signature+2S3Pnzdzx/Kw31BdG6Q3Seb7TnYk9mcsqDULouCr7zcTdlypJrH55pNcPFi708clyPT2rpeBMhFe1wG3i3pBQ==
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

2026-09-17T11:35:47.143172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031219
observed 87173c3448e3d299235eaebf1470a41f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.125109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031219/manifest.json
observed 284e5ddf056acdf8ee1d1252a1358cfe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.106786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031219/publication.md
observed 54d4dbd24c1770cb397f0d89a17a3d01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.085787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031219/publication.txt
observed 0dda92c2bc06cb8fb73cdb50de2f1621...
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.