OpenTechnical

OT-2026-000038914

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum 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-2026-000038914) never changes.

Identity and time

Publication numberOT-2026-000038914 · never reused
Internal UUID01a0ae78-769f-7fe1-a90d-3ea516bcc1a3 · 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-2026-000038914
StatusPUBLIC

Content hashes

Canonical text21dd4f45a87ddab6fa771c53e2596cec02d1a9bda86306a3a93640cfcd1121e6
Markdown18deefde40bc27a6b898a7f746fb486b139b4d9fd029ef76c6b44162d2afc23d
PDF
Publication page56fedd21d1950be4c2e615ab9d7bd4172e200a769518a68f6baee46659863a41
Manifest0b2c31df3d04b631ecb7e4cab6e79d596aad4e49de56f63190dea29f7d56a5af

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
Signature6sdhqXTWgsi6phUtruTJcGQZgebl5cRtv1bUByTRbm1IOyCjmmGDJ7u2FyU4QtCozQTJRcBGr9JV4c4AL4UcAQ==
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

2026-09-17T11:21:35.278641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038914
observed 56fedd21d1950be4c2e615ab9d7bd417...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:21:35.262063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038914/manifest.json
observed 0b2c31df3d04b631ecb7e4cab6e79d59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:21:35.243781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038914/publication.md
observed 18deefde40bc27a6b898a7f746fb486b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:21:35.224741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038914/publication.txt
observed 21dd4f45a87ddab6fa771c53e2596cec...
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.