OpenTechnical

OT-2026-000019140

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000019140) never changes.

Identity and time

Publication numberOT-2026-000019140 · never reused
Internal UUID01a0ae6e-f391-788d-9cd0-34e6f3000333 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019140
StatusPUBLIC

Content hashes

Canonical textd953b089987a0b2f52cd3e4b1b1e073a65ad69621378b1b0db974fab14591ab9
Markdown633f53c60d9d10fdc9e4c957d1ba38d1616593414f794a215e31d17d70d236e5
PDF
Publication page0051c538b37fe6d5e22a792f94caed13befdf2a8b1bd6560702386f366927ce4
Manifest946b3692b8562ce5701ece0f9da3b08dd78cfd388a5553ff6982080714f26be2

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
SignatureshEFevvw7qvB0N5bqKamA2D2+lDDP3xDAIUZ3VtDdzlq1j/daDxY02OD/HRFq4h0H9Yzrf4+TgTjTjYrM/AgCg==
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

2026-09-17T11:58:26.923607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019140
observed 0051c538b37fe6d5e22a792f94caed13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:26.907081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019140/manifest.json
observed 946b3692b8562ce5701ece0f9da3b08d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:26.890172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019140/publication.md
observed 633f53c60d9d10fdc9e4c957d1ba38d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:26.870623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019140/publication.txt
observed d953b089987a0b2f52cd3e4b1b1e073a...
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.