OpenTechnical

OT-2026-000057839

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, supply line pressure sensor, pulsed blow-off before 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-2026-000057839) never changes.

Identity and time

Publication numberOT-2026-000057839 · never reused
Internal UUID01a0ae88-6ed8-7f0d-9cf1-21fef6148ed4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057839
StatusPUBLIC

Content hashes

Canonical text9f9f502d8675b63d6d302e440ef7ce553806e3a282d988d7d8cc269f00ee9e59
Markdown505520b4eb00cef2030a9c2be7db916eead7b26c86a98284274d367801200ed0
PDF
Publication page5bf600e2f8e68db171d183ca7d497b5c9d06f1ced7640d962d55e80ac41a9f09
Manifest70006e96be5f03ed57d0f4b6222c6ecd65d965b08298678877065cbb6e55b27b

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
SignatureNEXxszHwsO3OwwnFcBeQgiKyYvxdagpK3Jh/UMOstTMUYC3//snZYkRerUEyWqviPP6DB7y4TsgM3NR1jljuDQ==
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

2026-09-17T10:47:24.944289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057839
observed 5bf600e2f8e68db171d183ca7d497b5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:24.927623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057839/manifest.json
observed 70006e96be5f03ed57d0f4b6222c6ecd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:24.909836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057839/publication.md
observed 505520b4eb00cef2030a9c2be7db916e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:24.889253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057839/publication.txt
observed 9f9f502d8675b63d6d302e440ef7ce55...
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.