OpenTechnical

OT-2026-000060417

Publication integrity record

Single cup vacuum gripper, pump 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-2026-000060417) never changes.

Identity and time

Publication numberOT-2026-000060417 · never reused
Internal UUID01a0ae8a-b7cb-703f-baa8-492465927a4f · 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-2026-000060417
StatusPUBLIC

Content hashes

Canonical textd1d8b0fa23f1b94c52bea6b24825d0a6d15af2631f80edc08f867c9063abaa69
Markdown6c5c19eca42d4d180d2da15c6a75419b0e29788a46e8af462c74d818232c2c2c
PDF
Publication pagec62d689109a168521216e5716a555bb12e6ece3da2bac1f27aae55329218ffd3
Manifest61947457f5f30419000d935adecbb6787900b4317e698d66c86aad04bc8e9295

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
SignaturewinFZUg3DKldcxRKc53G/2bv4bGdM1XyozOlZ+/iKpDHHHtLUXL3YnZ0qp/aXn/pV885i0iNgYa4NWHlyojQDw==
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

2026-09-17T10:42:53.386421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060417
observed c62d689109a168521216e5716a555bb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:53.368694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060417/manifest.json
observed 61947457f5f30419000d935adecbb678...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:53.350357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060417/publication.md
observed 6c5c19eca42d4d180d2da15c6a75419b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:53.331157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060417/publication.txt
observed d1d8b0fa23f1b94c52bea6b24825d0a6...
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.