OpenTechnical

OT-2026-000081103

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000081103) never changes.

Identity and time

Publication numberOT-2026-000081103 · never reused
Internal UUID01a0ae96-b977-767a-9d15-97d939d3d4f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081103
StatusPUBLIC

Content hashes

Canonical text61ae99f0e1ca028a1bc8398e4b5da505853e1f80ed699d7113571a9097012abf
Markdown3eb748b3bf3bf8fd8b2d3a2b3752186b01a71dffe30828bc16a816d2500c0f56
PDF
Publication page773d8a9333f4577fb9ec1ac300eb13ed180db6dbd9b877d166c65c9a18dabf88
Manifestce4f5a49e315205335bf6fe31f4641df8bea0e888788d204d950ee2bdd18052a

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
SignatureseDHWj9BoXHp0gVPkA1aBpDIeWVGhZ09/eV4Vk48U4vTRlRIbImyXdNbW6FnBLtBeKIZgMmU8LT2MdnXnI30Ag==
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

2026-09-17T10:02:24.581729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081103
observed 773d8a9333f4577fb9ec1ac300eb13ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.565495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081103/manifest.json
observed ce4f5a49e315205335bf6fe31f4641df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.548454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081103/publication.md
observed 3eb748b3bf3bf8fd8b2d3a2b3752186b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.531926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081103/publication.txt
observed 61ae99f0e1ca028a1bc8398e4b5da505...
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.