OpenTechnical

OT-2026-000074315

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, pulsed 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-2026-000074315) never changes.

Identity and time

Publication numberOT-2026-000074315 · never reused
Internal UUID01a0ae93-7179-7a26-9ade-ffdc493d2813 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074315
StatusPUBLIC

Content hashes

Canonical text4e0a3f3146745d5285372992493ff48495b9e50f9fdde5c63875aa982e9afbfc
Markdown9e7ea803381160556bad87bb5bfe25e316eaa6f87c3d4847572e12e4d90077f7
PDF
Publication page9018ed42c726050f14af9c1bf0709c899af051429d1faa3ec61ac202be01a8d3
Manifest368d1e4073297b52332c453c9955654ec15dcc1abeaefd42068ce67d8fdcb358

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
SignatureWTFnkKGJ/p5nPkwErYcdOc3bs3NRfSYZOtvJguyvYeKkckjKE9Lnf7Vk2Lrqc+kkCbPUgJ1LA68S+sj/pbueCw==
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

2026-09-17T10:19:13.619534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074315
observed 9018ed42c726050f14af9c1bf0709c89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:13.602358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074315/manifest.json
observed 368d1e4073297b52332c453c9955654e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:13.585479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074315/publication.md
observed 9e7ea803381160556bad87bb5bfe25e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:13.567542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074315/publication.txt
observed 4e0a3f3146745d5285372992493ff484...
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.