OpenTechnical

OT-2026-000008300

Publication integrity record

Foam pad vacuum gripper, two stage ejector, sustained blow-off before 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-2026-000008300) never changes.

Identity and time

Publication numberOT-2026-000008300 · never reused
Internal UUID01a0ae6a-908e-725f-857b-83c41141dcc1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:14.564317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008300
StatusPUBLIC

Content hashes

Canonical text74499e0e2809498262d1ac1944937ff0774eaceb8c486882ed4d70296dd5c940
Markdown5268edf897b7dcd300b3d1f7e34e05a61539a8fc9a6b6507f26ac2cb4abe5ce8
PDF
Publication page6f990c91a8837bbf81547ac2f978fd5f0911e57387e91b546c85cd671df1e871
Manifest7c3a5023315ddafa50c3d1f820730693baff7175e2907114fe96b7bcb189790c

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
SignatureDJD8EJK2ulDpA6WEyfpJ+9QsRYzoOdd1S05DaPKnuaGEik8YbIQB/pfc38CFWyTB644vcVCA/idrbI6qW4ppBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:20:44.888037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008300
observed 6f990c91a8837bbf81547ac2f978fd5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:44.872551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008300/manifest.json
observed 7c3a5023315ddafa50c3d1f820730693...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:44.853631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008300/publication.md
observed 5268edf897b7dcd300b3d1f7e34e05a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:44.833573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008300/publication.txt
observed 74499e0e2809498262d1ac1944937ff0...
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.