OpenTechnical

OT-2026-000077031

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, pulsed 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-2026-000077031) never changes.

Identity and time

Publication numberOT-2026-000077031 · never reused
Internal UUID01a0ae94-b071-71f4-a884-06eab4b6c2e4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077031
StatusPUBLIC

Content hashes

Canonical text5225430fa413f4ccd3016446b87a8408980205127b4bc0148fd6cfa6445f44cd
Markdown52e6737e8c23d2c4ffc81c5b868c23133a431854e4a9d1754e3a4aed8a8ad973
PDF
Publication page964a6cbdca06f6e5e2fccc8cc5925af742394f9c63599bec78967d17cd35c3d3
Manifest5e357a226a182dd939a9f0378dcba0d8e759a456792da472c01b399b5bbecc68

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
SignatureygwS7LF/8AG3FdIOYetjObRr8oTiNMuZVxTpYrO9GgS1d3L/delKTNG9XFCjxvLMpSojnE77bW0ny/tygBEpAw==
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

2026-09-17T10:10:27.023499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077031
observed 964a6cbdca06f6e5e2fccc8cc5925af7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:27.003834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077031/manifest.json
observed 5e357a226a182dd939a9f0378dcba0d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:26.984749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077031/publication.md
observed 52e6737e8c23d2c4ffc81c5b868c2313...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:26.966535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077031/publication.txt
observed 5225430fa413f4ccd3016446b87a8408...
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.