OpenTechnical

OT-2026-000075412

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented 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-2026-000075412) never changes.

Identity and time

Publication numberOT-2026-000075412 · never reused
Internal UUID01a0ae93-f201-7d1d-b1ec-85e061042311 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:26.476108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075412
StatusPUBLIC

Content hashes

Canonical textbb7c52b00c2ebea743e39673f15dfaf6ff018b494b7ddfa16c6931fec2e3a9e8
Markdown2047b281ae17d585a2bd76012c8d15d3b6dcc1fffe14db439c0d263f9024896b
PDF
Publication page219aa074a7605bc29c3c60f6e18d03bc83e4bb4273a3054f56d23d177c26f375
Manifestefe64d40357632c21bf904d224251d71d9c2ffd55324c173e4e3f22f3156ad8f

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
SignatureNuf1f8qHoy+nKhMZTPwmwPUi67VN8Qvy7qOqupd/0ExnuBnxng/x1VtY7UMfVJjee1KOkbbpzZqKls0guAX1Cg==
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

2026-09-17T10:17:32.471729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075412
observed 219aa074a7605bc29c3c60f6e18d03bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:32.454131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075412/manifest.json
observed efe64d40357632c21bf904d224251d71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:32.312556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075412/publication.md
observed 2047b281ae17d585a2bd76012c8d15d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:32.295456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075412/publication.txt
observed bb7c52b00c2ebea743e39673f15dfaf6...
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.