OpenTechnical

OT-2026-000055231

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000055231) never changes.

Identity and time

Publication numberOT-2026-000055231 · never reused
Internal UUID01a0ae86-a0ff-78a8-9a00-9ecbc1ba99fc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055231
StatusPUBLIC

Content hashes

Canonical textdc9856888d747beb1e34646763cc040e812893d646055a2b14718381104a8edb
Markdownb8ab22759980e353da2bbafece03c8930be506878769a072c21971553d9b26d7
PDF
Publication paged5dfc717fdf209f10d292991e4f4fef7f36fa178373d4864ea33b119142eb22b
Manifestc030166744c6a125f7940d379f38a2e55352caa4bd3d6a2cc0d1ac2da635d43a

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
Signature4TvRLv5WwBlSiigrkENxjnJ8H3DTn6EtKf7tJ8+/MWnLSLkp/rclA2CNPoW1zzEOcJwAlghRWVJpZB6JjWjRAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:48.760910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055231
observed d5dfc717fdf209f10d292991e4f4fef7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:48.740867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055231/manifest.json
observed c030166744c6a125f7940d379f38a2e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:48.723222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055231/publication.md
observed b8ab22759980e353da2bbafece03c893...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:48.703783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055231/publication.txt
observed dc9856888d747beb1e34646763cc040e...
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.