OpenTechnical

OT-2026-000060378

Publication integrity record

Foam pad vacuum gripper, plant vacuum fed, vented after 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-2026-000060378) never changes.

Identity and time

Publication numberOT-2026-000060378 · never reused
Internal UUID01a0ae8a-b7cb-7dd5-aa0d-ae219221910d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:21.818756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000060378
StatusPUBLIC

Content hashes

Canonical text7ef001d1b07b0f63971124e1c2a69b6cc9bd4c4da441fb34c6d464e15072d215
Markdownf740e6c923f3900919bd7ffdec51a867fc426c9dbacf228983d9902ca52642a3
PDF
Publication page4acdac6564b2ca15ec4c24cf96b9e78894c23450e0b7a32717bb6ad8b05e863f
Manifest0d907e0712d98ad84cc03cc1d8a6ce78edd425e2e9ff9e36bdddc6cb95f63da2

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
SignaturexTFE3Bjhr64fjm40a6ylqVYhfa6//XwphFG5c/m8cZ5AbxfCri3m0p5+Bez3BRojBAcAB9XrMlr45ylicl2PDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:50.575550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060378
observed 4acdac6564b2ca15ec4c24cf96b9e788...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:50.557582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060378/manifest.json
observed 0d907e0712d98ad84cc03cc1d8a6ce78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:50.539808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060378/publication.md
observed f740e6c923f3900919bd7ffdec51a867...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:50.521742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060378/publication.txt
observed 7ef001d1b07b0f63971124e1c2a69b6c...
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.