OpenTechnical

OT-2026-000057665

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000057665) never changes.

Identity and time

Publication numberOT-2026-000057665 · never reused
Internal UUID01a0ae88-2694-7408-bf73-13894cbee4a0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057665
StatusPUBLIC

Content hashes

Canonical textd1524c371888385c0c93a305d9f95ed14df169725f371b9212db69e8b2b03cdd
Markdown9e7acf2e8bce57dc0c0bdcedd7ce7cab3315615c1486bf97e5df0e002319268d
PDF
Publication pageba0e8b746e595817a0df6e84fc265cd4cdf889567fcccbc76d394dd05020565e
Manifestba22ee6eba1b1543736d84a879665628a5f7f015af00ce97743ecbe2dcf9dfc6

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
SignatureJ3WuK+exVfkb8No+M4ZEmDhMei229QlDFzQlgPNxZFchRapm6vg9OX4rb2710Qt8JXjCq+Kk6wIL9KIqJ2iBAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:48:14.113945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057665
observed ba0e8b746e595817a0df6e84fc265cd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:14.095530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057665/manifest.json
observed ba22ee6eba1b1543736d84a879665628...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:14.076648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057665/publication.md
observed 9e7acf2e8bce57dc0c0bdcedd7ce7cab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:14.048869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057665/publication.txt
observed d1524c371888385c0c93a305d9f95ed1...
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.