OpenTechnical

OT-2026-000041181

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, 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-2026-000041181) never changes.

Identity and time

Publication numberOT-2026-000041181 · never reused
Internal UUID01a0ae79-b143-72ca-a44f-7bd859fd3501 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041181
StatusPUBLIC

Content hashes

Canonical textaf3ad09f2b468f2fb896faad313a279e776ed06f0375cc598a3b8bfc1a917231
Markdown46894d4c54ca5ae81df11a1c691e2d51c9a0dba8decb0ba89202358dfcc1da6f
PDF
Publication page95f7d6efc4d926af8609242e8f4879c7ec493899ab828c61a9e20fece6ff58a1
Manifest72c06834214027f0a192630a7d96214f8205cac55ec6e998c2637e8096d0b24d

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
SignaturezWylIDldGD1g5PR40oJJNUbmaRGmRy7CrVNguk/TW1tONB0qyHq0MsTUANx3lnsW5D6BSoQMDC/ecDs/NBeQAg==
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

2026-09-17T11:17:07.851887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041181
observed 95f7d6efc4d926af8609242e8f4879c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:07.832531ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041181/manifest.json
observed 72c06834214027f0a192630a7d96214f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:07.789995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041181/publication.md
observed 46894d4c54ca5ae81df11a1c691e2d51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:07.747031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041181/publication.txt
observed af3ad09f2b468f2fb896faad313a279e...
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.