OpenTechnical

OT-2026-000091819

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, pump fed, 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-2026-000091819) never changes.

Identity and time

Publication numberOT-2026-000091819 · never reused
Internal UUID01a0ae9d-43ba-7433-b179-ba4d5e13e9ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091819
StatusPUBLIC

Content hashes

Canonical text61a69d199d2bc7e20a80ea370c9f5affb921f66357f2efbcc342620836805698
Markdowna25172c0346c01c8dcb77364552ad8b9049f5a07ecf19a8e5881f84947d98dbd
PDF
Publication pageee15bb30979793f4ee6222d1a6ddc49e5eebc4c2f0dbe5476f099f59589f6af3
Manifeste6b8706fa4fc63c36efdb6019a790be107063c8922a4530462c6d2f67178ceb9

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
Signature8PnImF7AKW3C5+qVcKiHZ/7MmMzYWar+7iyV8L97zVM64fkI0icFEj/PvRWZ5klreJ2rz4NSMhcTX6Qs8ha1DQ==
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

2026-09-17T09:42:43.933002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091819
observed ee15bb30979793f4ee6222d1a6ddc49e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.915096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091819/manifest.json
observed e6b8706fa4fc63c36efdb6019a790be1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.895808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091819/publication.md
observed a25172c0346c01c8dcb77364552ad8b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.879240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091819/publication.txt
observed 61a69d199d2bc7e20a80ea370c9f5aff...
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.