OpenTechnical

OT-2026-000080731

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, pump fed, sustained blow-off 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-2026-000080731) never changes.

Identity and time

Publication numberOT-2026-000080731 · never reused
Internal UUID01a0ae96-b973-7552-971c-987bb4d5ba7b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080731
StatusPUBLIC

Content hashes

Canonical textc279faf1a97770e5b08a9d7a2491cd68ff4c3ddaa7bfa7c2a79cfb0d46a4987f
Markdowndfc9268701adaffe84560a058c09f74a0d46f1a3a5416b9b4de8b8ede364a90f
PDF
Publication pagece876c6d0ddfa2ce9f6f640c211e7af21691804835d11ca4ad56583dd17c1fe5
Manifestebe8d9930d8fd8cba350eaaefaaa8632e0d1aaab4cbfe007bae6267d7f0bf093

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
SignatureF22Jng71746+XW3kjozrgm1b08kqisXDNPHq1GLxGa2JmqnJBXT10InqTr4JqO7s/GCAcaPpfwVF5xc0si9BCA==
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

2026-09-17T10:01:46.324361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080731
observed ce876c6d0ddfa2ce9f6f640c211e7af2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:46.303328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080731/manifest.json
observed ebe8d9930d8fd8cba350eaaefaaa8632...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:46.285318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080731/publication.md
observed dfc9268701adaffe84560a058c09f74a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:46.264815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080731/publication.txt
observed c279faf1a97770e5b08a9d7a2491cd68...
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.