OpenTechnical

OT-2026-000028745

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000028745) never changes.

Identity and time

Publication numberOT-2026-000028745 · never reused
Internal UUID01a0ae72-e2fa-77b6-badf-b0c9132ed057 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028745
StatusPUBLIC

Content hashes

Canonical textc5a164003cccba29a7ddcaac6b0aa64ac15261a32a5452cd68b713095edccecc
Markdown17d5e7516a353e9c92149e50ca93e33b60ec619e7e3d320edc93ab0269b2c4ec
PDF
Publication pagef2693ac66a1580ca9fe9423165d12d9ad1d1a84a95e5e0d53274aff212aef6d6
Manifest0bacb8f797239262ae160a904e3e5a2c4858cefc8d0b172f66889e9c842ed315

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
Signature58iJSx+CSa13YaogMV6/K4u57DD+dYvXPvItg6Jx/bob7Pg7N59WPe08oiDV6sy2lCyAPpgDyZY7cI/IKcGmCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:41:45.776850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028745
observed f2693ac66a1580ca9fe9423165d12d9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:45.758925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028745/manifest.json
observed 0bacb8f797239262ae160a904e3e5a2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:45.741139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028745/publication.md
observed 17d5e7516a353e9c92149e50ca93e33b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:45.720039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028745/publication.txt
observed c5a164003cccba29a7ddcaac6b0aa64a...
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.