OpenTechnical

OT-2026-000038938

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000038938) never changes.

Identity and time

Publication numberOT-2026-000038938 · never reused
Internal UUID01a0ae78-76a0-7c5d-9e1b-581bfbe255cb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:25:25.422407Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000038938
StatusPUBLIC

Content hashes

Canonical textf1cbc044cebf79e7429a402411d37436dced0a99b03ebe0ab75e37fa9c358e9f
Markdownf88c64c778f1ce1e2982064f5ba1ba9b5fdf2a5fd32e90a00564cbd04a788dc7
PDF
Publication page0b328942f6a7eec8013747331fd52043f6df43e8d83b88d488560025796cb545
Manifest431729338e824feb6cea638804f233ff2ce7d86ad68fd7120f8113bd080fc950

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
SignaturecySpV6kkqoOKwAanPjNdzE1BvlOMKAEReK+SdJBM86SkgGJW0dDln2HlUi1BlyqOvx8YkFLDC92yGzZNZUqbDA==
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

2026-09-17T11:22:12.530125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038938
observed 0b328942f6a7eec8013747331fd52043...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:12.513675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038938/manifest.json
observed 431729338e824feb6cea638804f233ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:12.496618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038938/publication.md
observed f88c64c778f1ce1e2982064f5ba1ba9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:12.479364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038938/publication.txt
observed f1cbc044cebf79e7429a402411d37436...
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.