OpenTechnical

OT-2026-000042097

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum 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-2026-000042097) never changes.

Identity and time

Publication numberOT-2026-000042097 · never reused
Internal UUID01a0ae7a-5d71-74cb-9125-c3ce74782c55 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042097
StatusPUBLIC

Content hashes

Canonical textd790b6b951b6250bcb57cb01d4c204d26d935a588d3563c731890512535cecc4
Markdown37081a5b0e890f7568c62eb38881c65f1fe6628e505e248549cae0661e30a497
PDF
Publication page619c70e623c8dbe1367430a96cecb47cd53e1a4969048fb9e1c8624f15308e30
Manifest73afa10e073e0cf7914ed810ade56973844f3d5e0a3f0398388144205733e064

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
SignatureIiw0scZ6Gg+N84J5mnMW0axhE0eri7olYrT5/eO1TL61DqdSSrZmkXNLTuvCjBIY9Gq2SES09JtfaDWohBr6BA==
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

2026-09-17T11:15:37.765848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042097
observed 619c70e623c8dbe1367430a96cecb47c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.746130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042097/manifest.json
observed 73afa10e073e0cf7914ed810ade56973...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.725098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042097/publication.md
observed 37081a5b0e890f7568c62eb38881c65f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.706497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042097/publication.txt
observed d790b6b951b6250bcb57cb01d4c204d2...
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.