OpenTechnical

OT-2026-000006004

Publication integrity record

Bellows cup vacuum gripper, two zone face, two stage ejector

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-2026-000006004) never changes.

Identity and time

Publication numberOT-2026-000006004 · never reused
Internal UUID01a0a94b-fa63-78f0-9f6c-62ccc685c86b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:18:43.942135Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006004
StatusPUBLIC

Content hashes

Canonical textb89df620ceba08d8b4bdfd721cd9d064e12b38b9e5fc8f34d04c4ab6b3813cb1
Markdownaf356df6a6ebe0493542e1d27d545798641926eb3f1218947d1a8e873083607e
PDF
Publication pagec9a589a19c8954bdcdba7c380c05e360fa90c1a675c571490b96abe2a0ca8db3
Manifestbec8665808117d8a56feaeae8318f00ae215132cb72ba0bfad0a527d4c109d5a

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
SignatureuzfQ3WBrW523++uJJOPrHNSH4GXWoCMivZ1hvC8f6c3kAmURLDlunekoQMPs7dIGBmJrRQYS/cgErmDIdy5RDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:06.880537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006004
observed c9a589a19c8954bdcdba7c380c05e360...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:06.737612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006004/manifest.json
observed bec8665808117d8a56feaeae8318f00a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:06.718745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006004/publication.md
observed af356df6a6ebe0493542e1d27d545798...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:06.698861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006004/publication.txt
observed b89df620ceba08d8b4bdfd721cd9d064...
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.