OpenTechnical

OT-2026-000075752

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000075752) never changes.

Identity and time

Publication numberOT-2026-000075752 · never reused
Internal UUID01a0ae94-29fe-78dc-9907-2349ee951661 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075752
StatusPUBLIC

Content hashes

Canonical text5e37e8f20d42397f41dc922a18749e7af1d89ae1b5299e8a2cb8a6ccdc33941d
Markdownfbaf3641169b8b4ade5f9f534a4c558d97cf8a9df090c1bb1c85509e401dd787
PDF
Publication page6fd5f20d1b54254341a0d79ed54d46038ce70a47c984c3f852162a095ab7e146
Manifest55d15f14eb34f2b5479b95e00f2c51e177d4219df2ee2c88bd718ca86b65d2f6

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
Signature2Dh+yjZQ34SiGYZkIf10MfPEzXB/ziHdtM0ZkFfTx93OVXXqgj1Y0zZeldNFLP/Y9MOxQ0tvceXOKK1IQ8rvDw==
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

2026-09-17T10:14:07.947300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075752
observed 6fd5f20d1b54254341a0d79ed54d4603...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:07.798844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075752/manifest.json
observed 55d15f14eb34f2b5479b95e00f2c51e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:07.780758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075752/publication.md
observed fbaf3641169b8b4ade5f9f534a4c558d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:07.754133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075752/publication.txt
observed 5e37e8f20d42397f41dc922a18749e7a...
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.