OpenTechnical

OT-2026-000029091

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single stage ejector, 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-2026-000029091) never changes.

Identity and time

Publication numberOT-2026-000029091 · never reused
Internal UUID01a0ae73-2a9f-7604-a2f4-7b21527476bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029091
StatusPUBLIC

Content hashes

Canonical textd34c3bb0ea1f00f3fe4964c3c3ef147d96718ed1d3b1b29a85402b45b0dc53b7
Markdowncec195feb2f17d795c6f53756294be33f732d62e61558fef0a7e24f7fd28621c
PDF
Publication paged08369cb379aeb2f30b0ffab2726f3c1945653a2c39f8b2b46751ad30a275640
Manifestdabbf7bec3287a0365c66a76b7faf70e5eb709a6e6892142e599ef15d47d31a3

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
SignaturegZ5HD6PCpEwvtbxRMpwWop6OEV24n86WDEawl9lHcfzWGewGyr67jTRskq2SXUAEyc9jLPpLXM5CDHVMeDMIDw==
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

2026-09-17T08:20:49.258568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029091
observed d08369cb379aeb2f30b0ffab2726f3c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:49.239532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029091/manifest.json
observed dabbf7bec3287a0365c66a76b7faf70e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:49.190708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029091/publication.md
observed cec195feb2f17d795c6f53756294be33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:49.049052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029091/publication.txt
observed d34c3bb0ea1f00f3fe4964c3c3ef147d...
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.