OpenTechnical

OT-2026-000021172

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, supply line 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-2026-000021172) never changes.

Identity and time

Publication numberOT-2026-000021172 · never reused
Internal UUID01a0ae6f-865b-7438-97b2-3af7f9bc242a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021172
StatusPUBLIC

Content hashes

Canonical text0ca357c52eb28aa02a98bea78420cc821c703011cb83cf1daf01c2e439920d87
Markdown69bd49d9a6aa46c9e6301f76b838816a4c19b084b3810ac58aea10a9f2d78f72
PDF
Publication pagecbca6740fac988df5f3e19bfd0d445def223ca8e50ba07dc8d702861d486daa4
Manifest16910724c676cd88bacf590757d620cbcc80caac1271cbbd57b2315168eac6ea

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
SignatureeOvGNMXH16QRvARk0f6Q4OUNlIjSlLQn9SHEcz3E375VPRaKnhYztgO2rV5js51ubyPncVmf9xOAH7CYYlVuAQ==
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

2026-09-17T11:54:56.841713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021172
observed cbca6740fac988df5f3e19bfd0d445de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:56.820897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021172/manifest.json
observed 16910724c676cd88bacf590757d620cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:56.801961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021172/publication.md
observed 69bd49d9a6aa46c9e6301f76b838816a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:56.773791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021172/publication.txt
observed 0ca357c52eb28aa02a98bea78420cc82...
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.