OpenTechnical

OT-2026-000028145

Publication integrity record

Two cup vacuum gripper, two outlet manifold, 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-2026-000028145) never changes.

Identity and time

Publication numberOT-2026-000028145 · never reused
Internal UUID01a0ae72-a520-75d0-9bc1-cc2f6051fc57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028145
StatusPUBLIC

Content hashes

Canonical text3599c5dd4bb317213e4cc1a4afb0f0f8356d7eee94d47a4ca786fac3d9081c5a
Markdown65b1b902d1f02957d94c35f75e525090362e3bf3496e0ea6ef935727f50bcc72
PDF
Publication page4c0031321dc66f3cd042c47968d076bdab56c9304575904e512a70d638669a45
Manifest6a741c077abe6543574759c9dddd8158c6500a5f4fc9b1ed9421cd4f86795d86

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
Signature5Jw3aaxC5AjqTlWmDHzWc7HF0xKnAf8kaf3xL7HHMzKPI4DBnxFIeXUBUdOx9tLylnHzLpnXhBWz986TLHNJAQ==
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

2026-09-17T11:42:29.942900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028145
observed 4c0031321dc66f3cd042c47968d076bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:29.924079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028145/manifest.json
observed 6a741c077abe6543574759c9dddd8158...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:29.904777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028145/publication.md
observed 65b1b902d1f02957d94c35f75e525090...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:29.884874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028145/publication.txt
observed 3599c5dd4bb317213e4cc1a4afb0f0f8...
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.