OpenTechnical

OT-2026-000081742

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, 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-2026-000081742) never changes.

Identity and time

Publication numberOT-2026-000081742 · never reused
Internal UUID01a0ae97-0f74-7155-a070-7fc9c82ff718 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081742
StatusPUBLIC

Content hashes

Canonical text1babb21366c75754067847300a4668bc3dd5d4b021185583a2b1c16fd1c849ea
Markdown3fb4ec4eb299445f4cb12d29fcab121d480c1927864149e21f77092a6b57d904
PDF
Publication page615608ea13517fd1e36351c24a499cdb9ae9f941f7c7838cde44ae3064c828c6
Manifesta4de4ddbf6a636e644e4ce304d06a611916de5624134ab9470b1536a5ada9d23

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
SignaturefZGulzkovrxtZclgBpnTPXOf7XlL4F9uWqy+gBKuMRO+AQikoaMau9kZ4bxixVANsLOFuH8295DrI0piP5mfDg==
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

2026-09-17T09:59:49.521958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081742
observed 615608ea13517fd1e36351c24a499cdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.497948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081742/manifest.json
observed a4de4ddbf6a636e644e4ce304d06a611...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.480149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081742/publication.md
observed 3fb4ec4eb299445f4cb12d29fcab121d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.461541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081742/publication.txt
observed 1babb21366c75754067847300a4668bc...
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.