OpenTechnical

OT-2026-000029475

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, 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-2026-000029475) never changes.

Identity and time

Publication numberOT-2026-000029475 · never reused
Internal UUID01a0ae73-5e21-7c3a-b478-8af8cc27a456 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029475
StatusPUBLIC

Content hashes

Canonical text9d2fe1c2b838b6624b9fbe0974072ddb246ae8d772add487d166d82b69911cf5
Markdownf94cdee85fd053107db973c8bdeb764f9cd60f85d056750884d2731dbf2082c0
PDF
Publication page1a08eceabb06db4f5d9c76c30cca9b4d0fac9e624f8ccd6108c9e0b0e7e721e2
Manifeste333d576e89d0ddd2122dd1b57f50983b757dac7050dbab39fc04bc430a3d790

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
SignatureQG4HGvXLi0VDAviJ96l1FC0PH4Ac+wFBDyjdaJ9b/GsfvT67MSToxmco0l17FXnRR89+pr0VxrXwRuaxM2KPDQ==
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

2026-09-17T11:39:05.977766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029475
observed 1a08eceabb06db4f5d9c76c30cca9b4d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:05.959527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029475/manifest.json
observed e333d576e89d0ddd2122dd1b57f50983...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:05.941713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029475/publication.md
observed f94cdee85fd053107db973c8bdeb764f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:05.923854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029475/publication.txt
observed 9d2fe1c2b838b6624b9fbe0974072ddb...
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.