OpenTechnical

OT-2026-000005007

Publication integrity record

Porous face vacuum gripper, four zone face, per zone isolation, two stage ejector, pressure verified

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-2026-000005007) never changes.

Identity and time

Publication numberOT-2026-000005007 · never reused
Internal UUID01a0a92a-cd40-74bd-8080-8a47de7db6a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:42:29.698825Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005007
StatusPUBLIC

Content hashes

Canonical text758fd88e052e8bda895f10b091c8d29415a975eaac6ce29047665c8f9a7d5061
Markdownd8c1f9c036dcac9e7a75f5413a214ee814ef41448940d0e2b917277a70a63dfc
PDF
Publication page73699c4feca81722953e37a9914e93d44597040d34587de67e14895f7bc5dcd1
Manifestc3e0c0df0199c963d31f6a2b5a9027d1ef7f63d3013e2f79c63296b94e9ef870

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
Signature0gZXzgr8Ll4/QyiFpQsyILECEdU8RvTGA9Ar8HL+pQQS934fQHCKZG/ciFNviFX0DCkZnwrDsu4QmrJcmTnqAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:50:25.644958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005007
observed 73699c4feca81722953e37a9914e93d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:25.632544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005007/manifest.json
observed c3e0c0df0199c963d31f6a2b5a9027d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:25.495320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005007/publication.md
observed d8c1f9c036dcac9e7a75f5413a214ee8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:25.481229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005007/publication.txt
observed 758fd88e052e8bda895f10b091c8d294...
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.