OpenTechnical

OT-2026-000091274

Publication integrity record

Two cup vacuum gripper, two zone face, two 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-2026-000091274) never changes.

Identity and time

Publication numberOT-2026-000091274 · never reused
Internal UUID01a0ae9c-f16c-7281-b1a9-4471eecff1c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091274
StatusPUBLIC

Content hashes

Canonical text4e420cb0f921ba0ddd1e1cd79ff27f6a37689088ab4195aebf15ff84b06297d6
Markdown5a6ef8384b29968c593393e9dde7f28e264f936b0d30ed61e8cf4a59287f79d2
PDF
Publication page92094b414b3a34a0154ef1e31c43fe67b182e44d1e1ca00e76a4d161b84f4658
Manifestfc86b64cce7300419efa85210983ab25f27ec69e346ac1b3a785af93df44bb27

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
Signaturevsr517iBaHBm1jUWA9OYlhpxIYve7KQrr6/nwgD7fw+EIPMTojJouBq1SndhcjZ0QlWrIMloHB8Xc1I8VIKWDw==
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

2026-09-17T09:43:27.268601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091274
observed 92094b414b3a34a0154ef1e31c43fe67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:27.251068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091274/manifest.json
observed fc86b64cce7300419efa85210983ab25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:27.233913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091274/publication.md
observed 5a6ef8384b29968c593393e9dde7f28e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:27.217833ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091274/publication.txt
observed 4e420cb0f921ba0ddd1e1cd79ff27f6a...
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.