OpenTechnical

OT-2026-000031239

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, pulsed 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-2026-000031239) never changes.

Identity and time

Publication numberOT-2026-000031239 · never reused
Internal UUID01a0ae74-87ab-7789-a7f8-faa27b068e67 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031239
StatusPUBLIC

Content hashes

Canonical textcbe948e34335aa19b2da24b51741904321e6e9098fc52021511ec30168a4b81d
Markdowncc6ad1d465299d2d3a2c97009c8b1de5127014850eb95e47eb1edb13769c0c34
PDF
Publication pagef81da856776bc0c49154ee2fb357c65860f12eb97bd4aa7d707d0061240b0e00
Manifesta9d62bf96c5ec410b99c9ef4ce937d29be3a3820bab55dc04de0d581851c0770

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
SignaturetI/RIRpnH6x2HxdjD8dRwW/a3W6LPjfkVh3NOavD7jdug7rxAolztgwtnOhBA/IjvWLxndVXe28NxZmE+nZuBA==
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

2026-09-17T11:35:48.672118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031239
observed f81da856776bc0c49154ee2fb357c658...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.653857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031239/manifest.json
observed a9d62bf96c5ec410b99c9ef4ce937d29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.636478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031239/publication.md
observed cc6ad1d465299d2d3a2c97009c8b1de5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.618015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031239/publication.txt
observed cbe948e34335aa19b2da24b517419043...
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.