OpenTechnical

OT-2026-000080028

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum fed, supply line pressure sensor, vented 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-2026-000080028) never changes.

Identity and time

Publication numberOT-2026-000080028 · never reused
Internal UUID01a0ae96-4377-79a3-87b8-76dc5aefa2ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080028
StatusPUBLIC

Content hashes

Canonical text551dcb6f42aaa9020368ecf3c2edccde394576b1351398c02ba165d8db2cafbe
Markdownd83788cf07716822698cde6ff529cfd72bdf559918b366649987defdbbd1b5ec
PDF
Publication page05a7194df321f1fb5eaf241e88dd2d082c668c210e85681373f7bbe10e40a13f
Manifestb220a3a1dcff76205ef0f2951e57eb1f0ab717371e3bd4d7ce5e07a6f73593a2

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
SignatureHeaJJZptmNmzeMYPth0ao8CqUN/4P1TlK1Ldah7C41E4mBK76zOs3utUCUaK4a+1eJKd/Fg3SWhhGBF3XPWDDw==
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

2026-09-17T10:03:57.030696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080028
observed 05a7194df321f1fb5eaf241e88dd2d08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:57.013409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080028/manifest.json
observed b220a3a1dcff76205ef0f2951e57eb1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:56.996195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080028/publication.md
observed d83788cf07716822698cde6ff529cfd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:56.980191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080028/publication.txt
observed 551dcb6f42aaa9020368ecf3c2edccde...
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.