OpenTechnical

OT-2026-000006072

Publication integrity record

Porous face vacuum gripper, three zone face, ejector fed, pressure verified, vented 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-2026-000006072) never changes.

Identity and time

Publication numberOT-2026-000006072 · never reused
Internal UUID01a0a94e-6855-7c22-b2b3-7bcde04033e1 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:21:23.159604Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006072
StatusPUBLIC

Content hashes

Canonical text251c976091acc813880c2b8191dbcccfcc47312bfd07166e147690ed97ddb509
Markdownbdc5e2ce5a029a4f3ebc6831c0b73e1a8587b607516b27ab3b5df440e0d3b12e
PDF
Publication page48a16efd2e3ddca5f2f15e6975e4954dc480a52bae2931b29cd25755de7fe239
Manifest9260babeafd30a37197d352ff9a27ccc459004c720e4b0943f244a4c6e2974af

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
SignatureQ83tnxl+1U6It/RhJAT+2Mwq3BM14/1zL+326JIMkWbyYcOx9Xgc4ITCcqtxG4gPIj1BPIGr+mMmu+EwwpyUDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:30.663158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006072
observed 48a16efd2e3ddca5f2f15e6975e4954d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.650658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006072/manifest.json
observed 9260babeafd30a37197d352ff9a27ccc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.636316ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006072/publication.md
observed bdc5e2ce5a029a4f3ebc6831c0b73e1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.622557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006072/publication.txt
observed 251c976091acc813880c2b8191dbcccf...
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.