OpenTechnical

OT-2026-000074187

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, manifold pressure sensor, pulsed 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-2026-000074187) never changes.

Identity and time

Publication numberOT-2026-000074187 · never reused
Internal UUID01a0ae93-7178-7ae8-bdec-79cff14b28cd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074187
StatusPUBLIC

Content hashes

Canonical textba15a5eab32ac3b808ba49a712122429b86bc6410cd90e4a23817e2399999c2d
Markdown9ce619c10d2de4bf9cafd4f3b7b3416ba40d22fc3f4bc24aec2590038f3ec6e5
PDF
Publication page798cfa9a2b2145f261a2b0952cc946ff3ef21546442b0aab7b9046533b77525f
Manifest9190215576ac9a6cedcd6f4c6473778baa4a05eb25e7eb64d11619ca9b9677a2

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
SignatureDh4LwIaut7lJKvOOfbDOsXqCJIdNXtW0neQ3XMHA4mmtsAa8CGbFgYT76NaO7VDbwNIVPrfwawn/8FzDZHZuBQ==
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

2026-09-17T10:19:02.413670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074187
observed 798cfa9a2b2145f261a2b0952cc946ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.396027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074187/manifest.json
observed 9190215576ac9a6cedcd6f4c6473778b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.378852ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074187/publication.md
observed 9ce619c10d2de4bf9cafd4f3b7b3416b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.361903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074187/publication.txt
observed ba15a5eab32ac3b808ba49a712122429...
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.