OpenTechnical

OT-2026-000082806

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000082806) never changes.

Identity and time

Publication numberOT-2026-000082806 · never reused
Internal UUID01a0ae97-8cc9-7316-b3df-00a559e45941 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082806
StatusPUBLIC

Content hashes

Canonical text7ffd56a47eea6d040b0c345b6a273d6568544f5f92ae57ee754a5292ce420bdb
Markdownd1c0b9f151238944302e21aacf55b5902647ed8265ac89c7063e154d80f3a0bc
PDF
Publication pagea4e4a37b9a342d4423a2fa1db3d21085d986d34638cb546f73121b3c297fe17f
Manifestc81b96c1eb125350c2fe2dd9bddb85a81b702f1783d9d3a53e4e76d5c489fee9

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
SignaturebuZqIv3OwaI9rvMO0jynhxbuXtz9STzzdMqTF6HGNZy1HpeekWJFcICiiK4neyRteA3xnc/SATkWKyKbnl4ODw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:58:24.011769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082806
observed a4e4a37b9a342d4423a2fa1db3d21085...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:23.994842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082806/manifest.json
observed c81b96c1eb125350c2fe2dd9bddb85a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:23.977185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082806/publication.md
observed d1c0b9f151238944302e21aacf55b590...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:23.957654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082806/publication.txt
observed 7ffd56a47eea6d040b0c345b6a273d65...
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.