OpenTechnical

OT-2026-000033281

Publication integrity record

Two cup vacuum gripper, two outlet manifold, 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-2026-000033281) never changes.

Identity and time

Publication numberOT-2026-000033281 · never reused
Internal UUID01a0ae75-897f-7c6b-b002-80ebf8c89249 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:13.649513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033281
StatusPUBLIC

Content hashes

Canonical text4da18f1cc2346edfd7104739ecbb75e1752bcb8af22e3747bf0ed1e8f0960b6f
Markdown6315240ddcca933ceb5bae0b48855b0171bd5e7bcfc1ab29465ee3617d1b1b9d
PDF
Publication page40539f238efb418eefde1ebb2e000faaa272c76e1a61d010703139849b96a776
Manifest3695676022b00360d62a878b8da09aae972dc0a8efb7f022ddb41bd487d65706

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
SignatureKhwnzkqdpDID4wgQVh4YlmbNVDS7wp17ERAnnXIzt5n+LGFkfiArKPn119AgYJWEIb+P1LbdCQjEOkLsuA+8Bw==
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

2026-09-17T11:32:01.349105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033281
observed 40539f238efb418eefde1ebb2e000faa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:01.331954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033281/manifest.json
observed 3695676022b00360d62a878b8da09aae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:01.314378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033281/publication.md
observed 6315240ddcca933ceb5bae0b48855b01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:01.295021ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033281/publication.txt
observed 4da18f1cc2346edfd7104739ecbb75e1...
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.