OpenTechnical

OT-2026-000022517

Publication integrity record

Single cup vacuum gripper, three stage ejector, sustained blow-off 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-2026-000022517) never changes.

Identity and time

Publication numberOT-2026-000022517 · never reused
Internal UUID01a0ae6f-f4fe-7196-8c0c-9f7319a82143 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022517
StatusPUBLIC

Content hashes

Canonical text7976ba59d752ebc67869581d9a4f14a1ce6c631da3826c7ccec2493346e5fae4
Markdown59e8239e90818036477babdeae459e07146092f1ee0e20fd946d06da91adb1f1
PDF
Publication page8b6977aeb19b35f708c67ad92c73c4dcebdb7f857cfafb6868ccbe0138af5fb2
Manifest1a1f3df45b49c1ed5c3079227812dcd447fc8ca1c053feebd2d26cc75246f2c0

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
SignaturevUFdcWv5mVYeocifIQYNMPr1exUzlHwB/fHbfdLbif3SFF6WCAgJqwik05z5gv7MRjzWTSKivegKAS90BBTICA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:53:56.826876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022517
observed 8b6977aeb19b35f708c67ad92c73c4dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.809302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022517/manifest.json
observed 1a1f3df45b49c1ed5c3079227812dcd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.790970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022517/publication.md
observed 59e8239e90818036477babdeae459e07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:56.775072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022517/publication.txt
observed 7976ba59d752ebc67869581d9a4f14a1...
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.