OpenTechnical

OT-2026-000091189

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, 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-2026-000091189) never changes.

Identity and time

Publication numberOT-2026-000091189 · never reused
Internal UUID01a0ae9c-f16b-7aac-a90c-6aea05a23aea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091189
StatusPUBLIC

Content hashes

Canonical text63b3e213b3d89bf956b409ebf4f93060071cc8a30db984d2c7146f037150bde1
Markdown56d354b863b0a98637fa4b08bf45b33abfa280509c8b9f753ee3a594292e33ed
PDF
Publication page738b956ae0287c74fc9b7bfb784d5a227bb2ccb2dfd71093287de01494a8d5cf
Manifestb434b98f4d48dc3d74b804fdc33c117059811cd243795f630e222b4169632a59

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
SignatureV2tJqbE4Q1dyF2MkztpG2M4Q5/NcvjO2X7LqzWxPdoFfupl+AyK//sI37tWcwlYj0622o+q7xMQjGC6jxsJkDQ==
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

2026-09-17T09:43:20.985951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091189
observed 738b956ae0287c74fc9b7bfb784d5a22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:20.968324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091189/manifest.json
observed b434b98f4d48dc3d74b804fdc33c1170...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:20.951112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091189/publication.md
observed 56d354b863b0a98637fa4b08bf45b33a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:20.933898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091189/publication.txt
observed 63b3e213b3d89bf956b409ebf4f93060...
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.