OpenTechnical

OT-2026-000048301

Publication integrity record

Single cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, sustained blow-off 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-2026-000048301) never changes.

Identity and time

Publication numberOT-2026-000048301 · never reused
Internal UUID01a0ae80-4de3-7176-a119-32bd27e22048 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048301
StatusPUBLIC

Content hashes

Canonical text6d4482c8054ebd61f6402743dbd68125e8098613ab917e1448ee496c15c4d8de
Markdown5961d009c5c3b1bb2a98ade23f578ce3a8e78b7d75ffaa2c9ee59a4f6b27c30e
PDF
Publication pagecd70ec320d9b27d0229f085fbe748bfd4acbb48b37a8f98224c1c89d8884c8dc
Manifestf4093372668aa7431f74ebcf6093f0f8f0d35008f30b7bd2b4907906cd6bed16

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
Signature+sy5OVeWk0DcKERPkxu3B2eUiy/g2uE7DvjyqOSWTVJYHkRGDUvkHP505XbItn2fMD5TyvrwMiAO/f4LfvHoAw==
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

2026-09-17T11:04:53.515978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048301
observed cd70ec320d9b27d0229f085fbe748bfd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:53.497010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048301/manifest.json
observed f4093372668aa7431f74ebcf6093f0f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:53.478420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048301/publication.md
observed 5961d009c5c3b1bb2a98ade23f578ce3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:53.456824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048301/publication.txt
observed 6d4482c8054ebd61f6402743dbd68125...
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.