OpenTechnical

OT-2026-000006723

Publication integrity record

Porous face vacuum gripper, per zone isolation, ejector fed, pressure verified, contact triggered, closed cell

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-2026-000006723) never changes.

Identity and time

Publication numberOT-2026-000006723 · never reused
Internal UUID01a0a965-2f7a-7457-96e1-14d8762080f5 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:46:15.934137Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006723
StatusPUBLIC

Content hashes

Canonical texta67739a1e9e9cb5a7547b3c3cdd8c00bd0a80561a7eceba702ff8044b39a336e
Markdown7eca9e7ebf5bdbf2de6aad48b28e3031fbdcca178f2ce555629807e23c943e23
PDF
Publication page540e29ac7c5924d87f9cac50d5c2b7187936babc480cf8625b78d4ced08b5589
Manifest3c0bc86f8318abe1faf357d64410629f6d037fad16916b70cea3f40c89372129

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
Signature+Eshoq9fzTEWDaXTuYPW+02Q+h9gxL+nihexXO62HNQE1MisYnJJiVk1Ou11+bTHVXRAXgr13O++g1cLpCPuCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:13.258772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006723
observed 540e29ac7c5924d87f9cac50d5c2b718...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:13.246236ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006723/manifest.json
observed 3c0bc86f8318abe1faf357d64410629f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:13.234952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006723/publication.md
observed 7eca9e7ebf5bdbf2de6aad48b28e3031...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:13.222746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006723/publication.txt
observed a67739a1e9e9cb5a7547b3c3cdd8c00b...
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.