OpenTechnical

OT-2026-000028118

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, supply line pressure sensor, sustained 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-2026-000028118) never changes.

Identity and time

Publication numberOT-2026-000028118 · never reused
Internal UUID01a0ae72-a520-77c8-b2c9-e4f52232573e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028118
StatusPUBLIC

Content hashes

Canonical textd3fd4c69c86ada69e406a6952d0545fa0bb1b5bab11e4907c06a8fca466e61a2
Markdown4df03676a193bf98a8e170252c214cb49cd979116bb70e8fde4b67823378fbfc
PDF
Publication pageab335ebd851aa56ebd8b3043492df8ac6f10037d4873c975cf9e75d0d5ab424c
Manifest8c0804314025492fa0eb80bde7bf0f8043fd4c8a681862a92836d366865bb332

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
SignatureRMiAeLxSJbfDWP/QbdRU4vDkOfAeLaSwgniYeG2CysONOFL67bKZiJaFBImkV/HgCcyh0PnzA+4uid8/Upy0Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:42:28.137355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028118
observed ab335ebd851aa56ebd8b3043492df8ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.119149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028118/manifest.json
observed 8c0804314025492fa0eb80bde7bf0f80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.101676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028118/publication.md
observed 4df03676a193bf98a8e170252c214cb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.082378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028118/publication.txt
observed d3fd4c69c86ada69e406a6952d0545fa...
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.