OpenTechnical

OT-2026-000009473

Publication integrity record

Four cup vacuum gripper, four zone face, two stage ejector, pressure sensor per zone, vented 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-2026-000009473) never changes.

Identity and time

Publication numberOT-2026-000009473 · never reused
Internal UUID01a0ae6b-7562-7f57-a68f-9cb5890219c4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:11:13.151287Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000009473
StatusPUBLIC

Content hashes

Canonical text2e155a3fe27a9e0b764654adf045f8fea3e1db6fd417549fe8a5d0aaeb21f884
Markdownce588be96f5adcc2d699668ce37a5171475ed66579d9cd91627196964100a45c
PDF
Publication page51a9b4121bfe4d9790d0cc5c94d1525b3416beb0fd0cbee81b5b1e9e621eb46d
Manifest1d744faf0b7fcbd22399518a7da6f8b2303da536fcd1c9180db80be6d56e2b0c

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
SignaturePC8LJ/egpOxLRDFRR5IVef9nzPDHA9aJnzpSvFFVc5aD6ByqXaMXfcE5tzPhhMf9cw3eHsOXgXg23DaiQ75ECg==
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

2026-09-17T12:16:51.992168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009473
observed 51a9b4121bfe4d9790d0cc5c94d1525b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:16:51.974691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009473/manifest.json
observed 1d744faf0b7fcbd22399518a7da6f8b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:16:51.957345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009473/publication.md
observed ce588be96f5adcc2d699668ce37a5171...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:16:51.939589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009473/publication.txt
observed 2e155a3fe27a9e0b764654adf045f8fe...
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.