OpenTechnical

OT-2026-000020550

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line 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-2026-000020550) never changes.

Identity and time

Publication numberOT-2026-000020550 · never reused
Internal UUID01a0ae6f-437c-7489-a5e0-cdb11aceddf0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020550
StatusPUBLIC

Content hashes

Canonical text226b2b459e75fe8f1786d36b83af648fcf4aac7aa01d7d82ea5affc9c0240aee
Markdown5db5e4c8edaa48745966645f2dfb68471ebbae0f21af26233a9fab463a0f6fe8
PDF
Publication page17cb2d33dedc3c1817141edbd7cf95b11a6c843ab8cc441ae6dbb8fec0f9a211
Manifest3e0c63f5f230a7218124c716231a7614aacabd47a205fc581dd5e128d8911a1c

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
SignatureNHWr9JBLq6lC6kedZrn69ziHORCZS8jMR6DWpOe59Fasm8DkED/7aVNXJwjYatv4RD9hVVVjguhSPwIMhB+pDA==
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

2026-09-17T12:00:32.213185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550
observed 17cb2d33dedc3c1817141edbd7cf95b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:32.195545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550/manifest.json
observed 3e0c63f5f230a7218124c716231a7614...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:32.178856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550/publication.md
observed 5db5e4c8edaa48745966645f2dfb6847...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:32.162160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550/publication.txt
observed 226b2b459e75fe8f1786d36b83af648f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.816769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550
observed 17cb2d33dedc3c1817141edbd7cf95b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.799808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550/manifest.json
observed 3e0c63f5f230a7218124c716231a7614...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.781469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550/publication.md
observed 5db5e4c8edaa48745966645f2dfb6847...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.764215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020550/publication.txt
observed 226b2b459e75fe8f1786d36b83af648f...
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.