OpenTechnical

OT-2026-000031817

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, pulsed blow-off 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-2026-000031817) never changes.

Identity and time

Publication numberOT-2026-000031817 · never reused
Internal UUID01a0ae74-bad1-7f6c-abdd-3cee2893b27f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031817
StatusPUBLIC

Content hashes

Canonical text0fe4eec65a5d7c58288013e6f9de28bc7cfa7f9d686972bc01ace3a2d67243cf
Markdown6e302da59a36c8f35fba076197726aaba447d45338f4107ddd2c6296d792c6e8
PDF
Publication page1c0629072c77045314db4a2239041942ee1f818d687d10d58128dd0686a23086
Manifest29db52d797b7df329efc317f5e11993894af8a55198f936ff30a42ad48690496

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
Signaturea0fiO+c0AKA036PkXwXCpHxtPSlpr9y7PVPiUcCiAVo1UDhaMIoTtxua04LYg3iMKxQfkud4xr1efpM/mlUNDw==
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

2026-09-17T11:34:58.775836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031817
observed 1c0629072c77045314db4a2239041942...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:58.745545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031817/manifest.json
observed 29db52d797b7df329efc317f5e119938...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:58.723459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031817/publication.md
observed 6e302da59a36c8f35fba076197726aab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:58.697147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031817/publication.txt
observed 0fe4eec65a5d7c58288013e6f9de28bc...
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.