OpenTechnical

OT-2026-000075618

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000075618) never changes.

Identity and time

Publication numberOT-2026-000075618 · never reused
Internal UUID01a0ae94-29fd-79e2-ac5c-4d2b15363281 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075618
StatusPUBLIC

Content hashes

Canonical text062ce8d5be88da76eb55951998f2541f6cc5592be29f14c5f8a4c66d0e56c37b
Markdown3f4494b22b5531f548251c71ba5b8e19aa766c52356dedf4e2fe37b5546e1861
PDF
Publication pagee5f4cb9a187ea9f09d3e38c0cb26636bbea4f143b667c48821d98c8453215cfd
Manifest6567976e9ed7aaf905492d3e67acb99dbf2a790396ce3ecc16d4fade562dd98f

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
SignatureVTif98c5rOMW0/kTY+hBaZzPrUm7NLZJWmLyPPwBZNOECohyHCGhqa4VtL+7yh3J0tYqdtccAZe0xsNmFBxABA==
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

2026-09-17T10:13:19.489708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075618
observed e5f4cb9a187ea9f09d3e38c0cb26636b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.471448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075618/manifest.json
observed 6567976e9ed7aaf905492d3e67acb99d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.454112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075618/publication.md
observed 3f4494b22b5531f548251c71ba5b8e19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.314414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075618/publication.txt
observed 062ce8d5be88da76eb55951998f2541f...
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.