OpenTechnical

OT-2026-000048659

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000048659) never changes.

Identity and time

Publication numberOT-2026-000048659 · never reused
Internal UUID01a0ae80-c32b-739d-9e03-2c23b8954fb1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:29.321882Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048659
StatusPUBLIC

Content hashes

Canonical text9c99adc519cfc22ff635fe0b784b394ad3c4fb1411bec85569c2e21964cca51d
Markdownfd7363a21a1b5752f1bdb1cccf5a5b2f49a9b833f9b6e6ba7df958d388014e9f
PDF
Publication page0929381e594d10ff64aadf7869e3b516fc413c7343a5c48f08fc9367ff529c1a
Manifest951d33464f4fe5905cdee3af59448a2ff24985111b89131cffc7fe80920f552d

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
SignatureMEr2rGL3EO6JhNj7AYxZysGXjjLnWzOQ6S2lbOGOU8ou2wvlQxmXrnjvihMmLxvEnS0uBmmWQjToSP8JbcoVAQ==
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

2026-09-17T11:04:16.555968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048659
observed 0929381e594d10ff64aadf7869e3b516...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:16.537855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048659/manifest.json
observed 951d33464f4fe5905cdee3af59448a2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:16.518191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048659/publication.md
observed fd7363a21a1b5752f1bdb1cccf5a5b2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:16.499092ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048659/publication.txt
observed 9c99adc519cfc22ff635fe0b784b394a...
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.