OpenTechnical

OT-2026-000038144

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000038144) never changes.

Identity and time

Publication numberOT-2026-000038144 · never reused
Internal UUID01a0ae77-f88b-7c5e-940e-399c65c2565c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:24:53.146436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000038144
StatusPUBLIC

Content hashes

Canonical text92280a8c76e65af5f1d25e6d69d745aff1702d641a2ed8c713a8f92061557ffc
Markdown518ed49b5722bbf1a2e2344f375ad9233bbe7575da6874328a728b4fb2cb3c2f
PDF
Publication pageeeda857a16399ca94414aaa006a07d7c247ddf7c755e8645a045e8631e6bde0c
Manifest946e3b449f3c44ceb894df29c7b7e9bff970718b433dc992a91b5b713dd7edc2

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
SignatureQqSRa0O1E0hE8h6hm9rRACyJ9y8GpOWqG8Vq27iAU3f6o/Z5aJRsp4pfyBGCqhQ5IrtuEDaOJS8h8lg+TMi8BA==
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

2026-09-17T11:23:29.535175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038144
observed eeda857a16399ca94414aaa006a07d7c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:29.517980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038144/manifest.json
observed 946e3b449f3c44ceb894df29c7b7e9bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:29.499203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038144/publication.md
observed 518ed49b5722bbf1a2e2344f375ad923...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:29.480536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038144/publication.txt
observed 92280a8c76e65af5f1d25e6d69d745af...
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.