OpenTechnical

OT-2026-000016255

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, pulsed 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-2026-000016255) never changes.

Identity and time

Publication numberOT-2026-000016255 · never reused
Internal UUID01a0ae6e-2d11-7109-a0e9-1037130821ef · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:11.237946Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000016255
StatusPUBLIC

Content hashes

Canonical text9caf006b458d2a0046a4b1ab91d98b645759e8dcbcf37ba4667b00c764b958e4
Markdown9451cc9165c30d3d99770f4f1c653b320d32ad3596411a8bd5ecde6639c9f3df
PDF
Publication page24f119c47c486ff104e786d7af41dc0b837eadec6425e75fe2c22bc917518738
Manifestb34301c97fd7896398fbe56c3608d038d035e5170705309615a782c67847dc8f

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
SignatureX+cN/UrIE7Ua3EbFvnXfGVun12xkSM28NUkI21oQ9E79Lv72vKxQEonpUTbif/AKEwo8hEfSJa6dDES8IuKwBg==
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

2026-09-17T12:03:42.549136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016255
observed 24f119c47c486ff104e786d7af41dc0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:42.533580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016255/manifest.json
observed b34301c97fd7896398fbe56c3608d038...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:42.514138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016255/publication.md
observed 9451cc9165c30d3d99770f4f1c653b32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:42.471149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016255/publication.txt
observed 9caf006b458d2a0046a4b1ab91d98b64...
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.