OpenTechnical

OT-2026-000027893

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000027893) never changes.

Identity and time

Publication numberOT-2026-000027893 · never reused
Internal UUID01a0ae72-a4a5-72ed-8403-811b9164eac1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027893
StatusPUBLIC

Content hashes

Canonical textdcd0ecd2aa8d674815375617bb6fa55b339159516ad3c26dbc140e61e9946192
Markdownefbc581fe5cff56ab4f3ba60e34d69aa18ee190c8cfb84949a27ab6a7fb52f11
PDF
Publication page7fa6c26cb2c283942954f5daa21b04438e9ca358adee37f5de001488262e935b
Manifest7477c381b33563d5f69600ea8b273fd991de4fcdc302a166a089fc3fca84112f

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
SignaturetTRp6x3XVSicECEwPkATOGUZzoszZp1QOjAuxwphgi0ZjygduBeTkqZ5hAPuRkx5d5FH3xmb66lFcSmDhYuCBA==
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

2026-09-17T11:42:03.692331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027893
observed 7fa6c26cb2c283942954f5daa21b0443...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:03.674811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027893/manifest.json
observed 7477c381b33563d5f69600ea8b273fd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:03.657506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027893/publication.md
observed efbc581fe5cff56ab4f3ba60e34d69aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:03.639104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027893/publication.txt
observed dcd0ecd2aa8d674815375617bb6fa55b...
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.