OpenTechnical

OT-2026-000042181

Publication integrity record

Six cup vacuum gripper, six outlet manifold, two stage ejector, 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-2026-000042181) never changes.

Identity and time

Publication numberOT-2026-000042181 · never reused
Internal UUID01a0ae7a-5d72-7fc5-8f58-0144558a7406 · 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-2026-000042181
StatusPUBLIC

Content hashes

Canonical text69b13569819ce5b10fb4b359136fd8d91008040b8ae2561513107fa64da4aa1c
Markdown7381d325a7e1bc4f1f770c748f2d3364594674ee8262e23dcf290a0794b788fd
PDF
Publication page56adf665b37c4b625b1cae7d5ef4afa43c9cfd4f3ac5f3180905c2b6131aefaa
Manifestce7613d86cf64be3c8c193fe17c619097304933f0332cfcc934187e50fb86edd

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
Signature3Xdc4qceHWIYl3BRdb+fcjHUK5dZELWjFGxiHZ4AfZ2nH9dAPqS9ijVQmXaXf077UlXQ6qkIMPZ7V0LjYk90CA==
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

2026-09-17T11:15:50.388012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042181
observed 56adf665b37c4b625b1cae7d5ef4afa4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:50.368780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042181/manifest.json
observed ce7613d86cf64be3c8c193fe17c61909...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:50.349180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042181/publication.md
observed 7381d325a7e1bc4f1f770c748f2d3364...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:50.329672ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042181/publication.txt
observed 69b13569819ce5b10fb4b359136fd8d9...
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.