OpenTechnical

OT-2026-000047723

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed blow-off 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-2026-000047723) never changes.

Identity and time

Publication numberOT-2026-000047723 · never reused
Internal UUID01a0ae7f-c41f-785f-8d34-392aecdeb9f3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047723
StatusPUBLIC

Content hashes

Canonical text77416a26adae3516105146fedbbe0cee1a9d799ab5f340a893db7d30489d041f
Markdown2eb90a1a54732759583b598d15b15cc5f8cea536ed2127d722a1ae5073f9918f
PDF
Publication pagee8869b987519f15b5b6a6964b220037b5d72e9c5c3ccb92dffbc9a59d1bbfef5
Manifest8b5e4dd794add904b656c6e75f207e8b065d95ed0790a2540c26f57d3417845d

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
Signature9jrGtzl8rJHk/5GJvfmD6axuQGKEizatYdHg2lo6bmykADahUBGxK3gaboZg1L7Z/8epr3jmBHcrHjXwKnqvDw==
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

2026-09-17T11:05:35.522397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047723
observed e8869b987519f15b5b6a6964b220037b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.504321ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047723/manifest.json
observed 8b5e4dd794add904b656c6e75f207e8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.485023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047723/publication.md
observed 2eb90a1a54732759583b598d15b15cc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.467465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047723/publication.txt
observed 77416a26adae3516105146fedbbe0cee...
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.