OpenTechnical

OT-2026-000081284

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, 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-2026-000081284) never changes.

Identity and time

Publication numberOT-2026-000081284 · never reused
Internal UUID01a0ae96-f374-70cb-90c8-dbd611db3602 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081284
StatusPUBLIC

Content hashes

Canonical textbbdd41c3efbf490b081223209afe6fa26e7caff95bb2ff88778418d1ec9bef14
Markdownce5ff8ccfe3a7c508f4af1c717cc37a14d42ea94558978476899ad71eec784f4
PDF
Publication pagebf48808ccabc5e90148a9a8914108f2110725330900d197e4ab3838c1d52f293
Manifest8774eadbcdef7f39b7163feb66583b716cf0a279812c24886e84d96876b32066

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
SignatureFAhXWW7qFOuabHKexWEnK41yNHQuQET5caF4LLrVqDCtG9kkolOv71LpLG0hgKEDGi9kdSLQnCA+mqrqWb3lAQ==
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

2026-09-17T10:01:23.413942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081284
observed bf48808ccabc5e90148a9a8914108f21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:23.395138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081284/manifest.json
observed 8774eadbcdef7f39b7163feb66583b71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:23.356064ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081284/publication.md
observed ce5ff8ccfe3a7c508f4af1c717cc37a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:23.313126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081284/publication.txt
observed bbdd41c3efbf490b081223209afe6fa2...
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.