OpenTechnical

OT-2026-000028475

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, 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-2026-000028475) never changes.

Identity and time

Publication numberOT-2026-000028475 · never reused
Internal UUID01a0ae72-e2f6-7c36-91e5-4270f75d28f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028475
StatusPUBLIC

Content hashes

Canonical texta6735fb3a2afd050a59c335d99919ec372a09d41411f66c6e3bccade03b47be0
Markdown4e3c2f292465490c795e1ca755dab2cfbbdb26892585cfe35867f7c9e382bb49
PDF
Publication pageb703c274264ae4464910ef814a7493e011c21053815b3d40853057127538a588
Manifestcc1914e8548ecfa40d208ccd74e962b16a2526e09fe200deae6775e0750b2338

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
Signaturec4NF16E8TD5FQz0xS44S/cNn4arFyfzMcJeltf6E1fz6PrZeH3Z24E6a0LZ40hu+QZELNnGSOusd07ONzD7IBA==
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

2026-09-17T11:40:37.292353ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028475
observed b703c274264ae4464910ef814a7493e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:37.275690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028475/manifest.json
observed cc1914e8548ecfa40d208ccd74e962b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:37.257309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028475/publication.md
observed 4e3c2f292465490c795e1ca755dab2cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:37.240486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028475/publication.txt
observed a6735fb3a2afd050a59c335d99919ec3...
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.