OpenTechnical

OT-2026-000069824

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, vented 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-2026-000069824) never changes.

Identity and time

Publication numberOT-2026-000069824 · never reused
Internal UUID01a0ae91-185f-7d24-82ae-b3c73123df37 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069824
StatusPUBLIC

Content hashes

Canonical textab4623b5bd8f72aa4b1983ed190f83759144f90de0420fb5227b018d45f0ce4b
Markdown1f1b87bcf01f71392e0579e3e847b81ba7efb9db0644c930b4049e43311edda7
PDF
Publication pageee2e5cd8fba28d475758cdbc52bb77baea4ace38b91e246896fe1d2390df768d
Manifestefe1f09e253dc2c83a77cae523252737ddc7be58e0d2773eca0f8bbe2a400d3a

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
Signature8iGJKSerGPhed0Ve7nm0I5YJqS0lbT0VkOR088HAwloPz8aN0tgeEOWsu0S2R0ORE/4lfD9d9P5FQYPrW4cFBw==
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

2026-09-17T10:26:30.796364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069824
observed ee2e5cd8fba28d475758cdbc52bb77ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:30.776944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069824/manifest.json
observed efe1f09e253dc2c83a77cae523252737...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:30.759118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069824/publication.md
observed 1f1b87bcf01f71392e0579e3e847b81b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:30.739422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069824/publication.txt
observed ab4623b5bd8f72aa4b1983ed190f8375...
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.