OpenTechnical

OT-2026-000077194

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, vented after 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-2026-000077194) never changes.

Identity and time

Publication numberOT-2026-000077194 · never reused
Internal UUID01a0ae94-f508-77b7-9335-472d342eb094 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077194
StatusPUBLIC

Content hashes

Canonical text2ab2466a2ad17991db8d2e0ae84d0cf67de24d10a8cc3df03f387ff12fe688dd
Markdown1ef645a2d1a202ffe47edf2a534f553a6b57815d2c78d3350cfcc0cb6eb0fe09
PDF
Publication pageaefbd59f97f9e74df48f0e658815858ad71af133bd7d9f8a66ce71bf1fe4050f
Manifestb8911c99f5efce1a4740c78319b6eb2c53683c032a5cad9bde3d534ca330d93b

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
SignatureFdp8ES6EG7rbG9TanT/D1XI9P6wV7f+8RSYgJ9Fds8msgRAe1PKspH+RcbmhhgMRgsHbnlc87vTjCY8EN+mGBA==
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

2026-09-17T10:08:40.160044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077194
observed aefbd59f97f9e74df48f0e658815858a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.144147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077194/manifest.json
observed b8911c99f5efce1a4740c78319b6eb2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.126225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077194/publication.md
observed 1ef645a2d1a202ffe47edf2a534f553a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.109081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077194/publication.txt
observed 2ab2466a2ad17991db8d2e0ae84d0cf6...
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.