OpenTechnical

OT-2026-000073546

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum fed, manifold 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-2026-000073546) never changes.

Identity and time

Publication numberOT-2026-000073546 · never reused
Internal UUID01a0ae92-efb9-7dbc-9065-009dd2b93e8c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073546
StatusPUBLIC

Content hashes

Canonical text2b595e757953052bedda6645908eda40021a97c015ea67ad868944d9ccc03ae1
Markdown9ffc02b3465ebf9cb5bbe6af28eb7fe065ecd974df8dc56a5e51ad8b7df3425b
PDF
Publication paged160f22925a03bc8a1cb17945ea78ee1d893bf537cbaebf09c6783fea424bbc1
Manifestcfc2c01d8cb6a96327cb7e3682b241b8c145ee51b18796d6046053dc3fd4b72f

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
SignatureRI10yiDVT+2UB5ICMgAiPDzpWwnjpfavpSDDiZ5Yr6foHHzpLvpnWhOgq3dUZs3uPb/W1Zgl1qRttwidZQKeCg==
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

2026-09-17T10:21:43.165601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073546
observed d160f22925a03bc8a1cb17945ea78ee1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.147265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073546/manifest.json
observed cfc2c01d8cb6a96327cb7e3682b241b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.128998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073546/publication.md
observed 9ffc02b3465ebf9cb5bbe6af28eb7fe0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.110415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073546/publication.txt
observed 2b595e757953052bedda6645908eda40...
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.