OpenTechnical

OT-2026-000075890

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000075890) never changes.

Identity and time

Publication numberOT-2026-000075890 · never reused
Internal UUID01a0ae94-29ff-78eb-81a4-1dfd513f0df0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075890
StatusPUBLIC

Content hashes

Canonical text4c2f14636c5226d6ce335af0235aafbbd238342998de656a0a29fe9334e6759d
Markdownc898e951b91a07a7dfc15607d64dc944f4521632052861db8119119a6fd3678c
PDF
Publication pagea3b5ace52511bd07649c4ff146a1b316d795e95856f98932246c8f0f77546f7f
Manifest1f956a74fda0ae0c2aeb3e423c483089b98be3efd7171c4de8fa4b7db1fc404c

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
SignatureDOcUq56Piyd+1/hWS72TnJkxpu7y6JCsoI8ooekZm2/YIXFWGiSxi9/q9DzUjfN2qBVB2QPu6p2vprZMILXYCQ==
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

2026-09-17T10:14:40.713183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075890
observed a3b5ace52511bd07649c4ff146a1b316...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:40.696286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075890/manifest.json
observed 1f956a74fda0ae0c2aeb3e423c483089...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:40.555920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075890/publication.md
observed c898e951b91a07a7dfc15607d64dc944...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:40.537790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075890/publication.txt
observed 4c2f14636c5226d6ce335af0235aafbb...
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.