OpenTechnical

OT-2026-000090861

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single stage ejector, pressure sensor per zone, sustained blow-off 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-2026-000090861) never changes.

Identity and time

Publication numberOT-2026-000090861 · never reused
Internal UUID01a0ae9c-c010-72ad-8cbe-ee4160b8d35b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090861
StatusPUBLIC

Content hashes

Canonical text4df05bf832e4eb87098087549714e164edac7a55fd79bac78d204d1bf9778e9c
Markdown71425a559a57aacd361bc59bcc8d21d9e2ffd49d7b3dcbbe5ec1c0484543378f
PDF
Publication page0e42accea09b360adae1d521ebbf15626ee5ea1028705db0a6e871da6e504ef3
Manifest1cb3cde6d141e1255a5b8b6479157ce7c4c02342293bb392137a6d92bf4d6365

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
Signaturen5GC+MGzEnCnxJcMmf1pXKJQxdYrSRINMVlmTISvjYoXf/fY1u/qkRqw24/baOK16phvxmSM0pSreL9r4FpeBw==
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

2026-09-17T09:44:03.209669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090861
observed 0e42accea09b360adae1d521ebbf1562...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.191061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090861/manifest.json
observed 1cb3cde6d141e1255a5b8b6479157ce7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.169960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090861/publication.md
observed 71425a559a57aacd361bc59bcc8d21d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.150391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090861/publication.txt
observed 4df05bf832e4eb87098087549714e164...
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.