OpenTechnical

OT-2026-000027833

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, 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-2026-000027833) never changes.

Identity and time

Publication numberOT-2026-000027833 · never reused
Internal UUID01a0ae72-a4a5-7705-b5f2-a252f5326fea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027833
StatusPUBLIC

Content hashes

Canonical textee4fe2881a99d604de2d44955eb2fccb083f9ed0086e14ec2a51b3786b99c5b4
Markdownd196e3e218cb3151ff9eb75a6e8ee8eed5e4c7dd1f6fe75fe1086de2a1ead15c
PDF
Publication pageb28a7eb231c4cc00b5c4b9795fca9b76ef5048dfa5cf0a8919b86ccca0fa79fd
Manifest07dce8f4443fc6e516dae22a72ce6ca3d1ae1aa221c8e44c42d06f446a795ef6

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
SignatureWZ2x7ij7zrM7dqGRnzjHizDfMcGUgaMVfQfOyfpWgFrClLFeYNrLwObC1FGqjvN5TJ13pVORoI3tusiwMkOuCA==
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

2026-09-17T11:41:53.255456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027833
observed b28a7eb231c4cc00b5c4b9795fca9b76...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:53.239520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027833/manifest.json
observed 07dce8f4443fc6e516dae22a72ce6ca3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:53.222213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027833/publication.md
observed d196e3e218cb3151ff9eb75a6e8ee8ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:53.206011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027833/publication.txt
observed ee4fe2881a99d604de2d44955eb2fccb...
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.