OpenTechnical

OT-2026-000016557

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed blow-off before set-down

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-2026-000016557) never changes.

Identity and time

Publication numberOT-2026-000016557 · never reused
Internal UUID01a0ae6e-2d14-72e4-9e80-b6998e2cce6f · 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-2026-000016557
StatusPUBLIC

Content hashes

Canonical text3307a84c33d638f2df2d048cfbfb4c24c4ad4702f4ea98ee5c04b1c444e3fa98
Markdownf305455214ce6e1fb02873ca542b22e1ea2670457d5d22546081468341d4ba90
PDF
Publication page5b4180878bb4f05cfa861e775b6498f1db9a05017a3c7130ee008643eed491cd
Manifestbfba811bfc1f87ddc58fbc113f97f61f4a3ae2bedc1f7e53fdb137061bc2f363

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
SignatureoJBfJRbpv3cxL39aXwVwsFNCFeMIadWgL/JZomjq9xyeeCw/BXd2bI74VDY6oVvJ0fb+2hO4jhPw7bfl1bwtDA==
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

2026-09-17T12:04:47.088466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016557
observed 5b4180878bb4f05cfa861e775b6498f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:47.070476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016557/manifest.json
observed bfba811bfc1f87ddc58fbc113f97f61f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:47.051737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016557/publication.md
observed f305455214ce6e1fb02873ca542b22e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:47.033766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016557/publication.txt
observed 3307a84c33d638f2df2d048cfbfb4c24...
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.