OpenTechnical

OT-2026-000057645

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum 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-2026-000057645) never changes.

Identity and time

Publication numberOT-2026-000057645 · never reused
Internal UUID01a0ae88-2694-7f47-930a-5b29f1bf67ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057645
StatusPUBLIC

Content hashes

Canonical text41f6675c12eba7179b5167e790a1b78bfef82ee37a664ed67ad5206658813a50
Markdownde4edbc4706c298cc05324b057391a12bc43ff84fce08d0a557141e22a92a8aa
PDF
Publication page70f9c52217b153e768a2303c992f10b9eba75137fa052655720a30839001bf13
Manifest1810adf77ce508c310468368e1d224d7ae0cf2eed38f724c607cfc6a19b3555f

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
SignaturequKFo8Ic2UI6AudQqEWIOA5heYyj/uu35qo20tDx+i+0iTeIYb5StIqfmz8/1rwA83WEZssKlZICfY3ttetRDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:48:12.616336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057645
observed 70f9c52217b153e768a2303c992f10b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:12.597313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057645/manifest.json
observed 1810adf77ce508c310468368e1d224d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:12.579813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057645/publication.md
observed de4edbc4706c298cc05324b057391a12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:12.562590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057645/publication.txt
observed 41f6675c12eba7179b5167e790a1b78b...
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.