OpenTechnical

OT-2026-000073112

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented before set-down

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-2026-000073112) never changes.

Identity and time

Publication numberOT-2026-000073112 · never reused
Internal UUID01a0ae92-efb5-7fd0-aac1-0965d23538a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073112
StatusPUBLIC

Content hashes

Canonical text536c3798710b8551be851ee519354513ec389e88cd8d02ff498833474252f153
Markdown08fbf8dcf5c4202e99d2217d6e860fdb279437a1e2c8384742287b97d8715f6a
PDF
Publication page9a6f5e8a54967497c148f532163eb96371bfa9bd9d14947338216ed65fe1c970
Manifest124b254a07133f4988312a65a151860fe07b9c3162c8274777d8359da236647e

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
SignatureW9x3EFF+Xzn5Ung25LzjEceB9cO8zt7xc0rpwhMrMXB1DoCPRaZLHzZWGZhaqljHy6XDfUPGYooacOCSK6cQBw==
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

2026-09-17T10:21:02.397237ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073112
observed 9a6f5e8a54967497c148f532163eb963...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:02.378217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073112/manifest.json
observed 124b254a07133f4988312a65a151860f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:02.359571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073112/publication.md
observed 08fbf8dcf5c4202e99d2217d6e860fdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:02.340112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073112/publication.txt
observed 536c3798710b8551be851ee519354513...
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.