OpenTechnical

OT-2026-000090893

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, 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-2026-000090893) never changes.

Identity and time

Publication numberOT-2026-000090893 · never reused
Internal UUID01a0ae9c-c011-7c54-974e-70f9b3545875 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090893
StatusPUBLIC

Content hashes

Canonical textd876de4b10bae8a6afc82de2a6c5829c522556e22d41afc0f4ecdcbb0defc831
Markdown597f9eb946000012b3df3ffe321c503fd6295dc5a4a5d1cec45523ee882d8aab
PDF
Publication page6dd1fb3a4dbf278efb459e2ce204dcacbd8819f7149d665140d1cac956449392
Manifestac3a17e866e48137f0b536c2df712133d234da1185d0b9059ea9d486e2ca36fb

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
SignatureSgFyLHQrUF8IfhHTytmf+Aye2FwEsiF41xd/hbrJ/p3SjjHEoWPIjUBIEdmHe5EEuD/4yTpfWHsA/5G7u/zUBw==
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

2026-09-17T09:44:05.751415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090893
observed 6dd1fb3a4dbf278efb459e2ce204dcac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.733158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090893/manifest.json
observed ac3a17e866e48137f0b536c2df712133...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.714879ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090893/publication.md
observed 597f9eb946000012b3df3ffe321c503f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.697540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090893/publication.txt
observed d876de4b10bae8a6afc82de2a6c5829c...
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.