OpenTechnical

OT-2026-000090679

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, pressure sensor per zone, 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-2026-000090679) never changes.

Identity and time

Publication numberOT-2026-000090679 · never reused
Internal UUID01a0ae9c-7f30-79d1-b0d1-464217be051d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090679
StatusPUBLIC

Content hashes

Canonical text1d7f0ac888b80a4019267835f328ceee6e7fb2779999eb7e7251d538eefcfbaa
Markdown260f01f0abe3e96bd1558fec988bae51ecb4a1abd5a7d645aa78212ddf57b60d
PDF
Publication pagea13dd94b1c8e5e7e1608befc2b84c4125ee917a4ae22ca5f5cc645482937c0c4
Manifest90facb99741567516a334b39e3a192643fc068a508a1638d9e29dd1577d2828f

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
Signaturegf2rSzgTdo5wOnn6ZUHkzz6HQFTERwvqQac9G27YLKL49zw0fbZev6n15xqRFXuuIdt5d/XHhuncF8qGByOiDg==
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

2026-09-17T09:44:52.574922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090679
observed a13dd94b1c8e5e7e1608befc2b84c412...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.559054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090679/manifest.json
observed 90facb99741567516a334b39e3a19264...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.540853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090679/publication.md
observed 260f01f0abe3e96bd1558fec988bae51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.524146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090679/publication.txt
observed 1d7f0ac888b80a4019267835f328ceee...
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.