OpenTechnical

OT-2026-000028117

Publication integrity record

Two cup vacuum gripper, two outlet manifold, three stage ejector, manifold 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-2026-000028117) never changes.

Identity and time

Publication numberOT-2026-000028117 · never reused
Internal UUID01a0ae72-a520-772a-a2a0-13cc363e71ee · 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-2026-000028117
StatusPUBLIC

Content hashes

Canonical text1104f1536b94de78dc0d5964daf2254e9b3e84c7c76f9335f6641d914c420353
Markdown32c9999760312db7d2c9100afdf1a44f9eb09b08a830965a770bc7af4fd769ec
PDF
Publication pagedce8acc65e312cc791bdcc13737f4ae8c4af7890e8d90cd0d72b10cb7fc55e9f
Manifest1222a9bfee0e2ba57f9ea22c1e1ddf8de629ec7dc2bfd6fd40e1e235317a3aae

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
SignatureQhyse4XT+3Om/PEUsfIN1M8/PhVkp/9d1SQZGMyvFxn65YuljyUo7291zcUfP3B3hxdX8tssxhJPTA1tNExKCA==
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

2026-09-17T11:42:28.062063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028117
observed dce8acc65e312cc791bdcc13737f4ae8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.043457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028117/manifest.json
observed 1222a9bfee0e2ba57f9ea22c1e1ddf8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.024633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028117/publication.md
observed 32c9999760312db7d2c9100afdf1a44f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.007440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028117/publication.txt
observed 1104f1536b94de78dc0d5964daf2254e...
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.