OpenTechnical

OT-2026-000073746

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump 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-2026-000073746) never changes.

Identity and time

Publication numberOT-2026-000073746 · never reused
Internal UUID01a0ae93-2b8d-7ade-93b6-33a8ba633670 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073746
StatusPUBLIC

Content hashes

Canonical text3dee2eacef0e87c8264b7e87cf5d734e1819e42591a00150856ba8dd98f7b5fd
Markdowna74dc0a8acc142e22a57f8e6d8e5d125b5ab90bbda6b660fb8f50b50c2fc1553
PDF
Publication page45cea82667f6568761af376d52548c1c2369503f047ffbb59eac3b01a31b26ef
Manifestd3b1ed465bf11c80350484dc25795ff368b33323f355da1c0f40efa18eda22b5

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
SignatureNKG4jFbIUsveNg7NJKPFMQ9rbJmAN+7ADPF+1cWQeQVehn5qnYzFfhRVyAb5cUdqAC6Pzd+iL9UtAXneaGriDg==
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

2026-09-17T10:19:49.901806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073746
observed 45cea82667f6568761af376d52548c1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:49.884416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073746/manifest.json
observed d3b1ed465bf11c80350484dc25795ff3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:49.865417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073746/publication.md
observed a74dc0a8acc142e22a57f8e6d8e5d125...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:49.846034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073746/publication.txt
observed 3dee2eacef0e87c8264b7e87cf5d734e...
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.