OpenTechnical

OT-2026-000043880

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, single stage ejector, pulsed 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-2026-000043880) never changes.

Identity and time

Publication numberOT-2026-000043880 · never reused
Internal UUID01a0ae7b-d677-7496-b5b7-a7a30d0a0f70 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043880
StatusPUBLIC

Content hashes

Canonical text2739b243d8a6d48b04820f1b507dc6e7d46ce6f4ba84f97d002932511eef813f
Markdown072c7187db19e60a991efb1a61f6e88f1875ecd0a730f2c8a74c873752f512a5
PDF
Publication page29dcad912f650b3d87ff960030c0914f56e23159ab781c8f85646ef6c53c71e8
Manifest694368b8a78528fac7338b70ce33b1e7ea47ce402d541315b8feb2a554d012f2

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
SignatureJNoAJd9jo6mSAnz/rJ6kD+QTt7GqNoInlaFC2fodjhmwzR+N3IFwoOgaaUaFVuw5tdlFMOnEx7C5pz+T3uFNCw==
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

2026-09-17T11:12:12.601725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043880
observed 29dcad912f650b3d87ff960030c0914f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:12.583200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043880/manifest.json
observed 694368b8a78528fac7338b70ce33b1e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:12.565943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043880/publication.md
observed 072c7187db19e60a991efb1a61f6e88f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:12.546703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043880/publication.txt
observed 2739b243d8a6d48b04820f1b507dc6e7...
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.