OpenTechnical

OT-2026-000072431

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump 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-2026-000072431) never changes.

Identity and time

Publication numberOT-2026-000072431 · never reused
Internal UUID01a0ae92-89d7-767f-be99-529f170d3941 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072431
StatusPUBLIC

Content hashes

Canonical textbf182f65dba67bb6a8a806418751adf95a5522c503c18e2e90e71ef3fbcd1ae1
Markdown589e289d2913f381c335e589da50c53f866475bfda1876fc987bbd086ca80989
PDF
Publication page0128718f8ac2afcbabf35f4bade78f17c72c49ec66064ff2ae45b86221147b2f
Manifest61e99664247248f974d11d266ba39081ad637c2c96b097f1e78f701e16fcdead

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
SignatureWoTtBQxrDUcLlRjYkxyV8HO7/ViuYopnY2uP+ELI60Vvk05s3kwK2aeSceZg99dYMe8dHdPYV7Yi6jPo8GGiAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:22:14.788410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072431
observed 0128718f8ac2afcbabf35f4bade78f17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:14.770716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072431/manifest.json
observed 61e99664247248f974d11d266ba39081...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:14.751605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072431/publication.md
observed 589e289d2913f381c335e589da50c53f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:14.733706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072431/publication.txt
observed bf182f65dba67bb6a8a806418751adf9...
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.