OpenTechnical

OT-2026-000054471

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, 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-2026-000054471) never changes.

Identity and time

Publication numberOT-2026-000054471 · never reused
Internal UUID01a0ae86-1282-74c5-aaeb-026af0199857 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:17.489937Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054471
StatusPUBLIC

Content hashes

Canonical text5b94fbf84047a931b586e3dce9e07a3353248f2385a1f47d8355af6f4101a15b
Markdown74228afc99b20bd167a1f45310f80a2e99e4adccd47072d1133b776c95ae4940
PDF
Publication page1c7e279fcdb5b10a0375577a6affa7c921b070aa4115dd3d947200b9358ade38
Manifest735082c063a92fc2f1ef1380eaf25a098fa1ef42ad973a92ed8b6d409b747a33

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
Signatured0jtG72PUatqxSMtZG9pDnJSgX/rjHXoLxpLCRyjmC3Ios9wl07st7g0due1Nt+MXX/jHVisNAjmQPKJVhSbDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:53:27.957943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054471
observed 1c7e279fcdb5b10a0375577a6affa7c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:27.937956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054471/manifest.json
observed 735082c063a92fc2f1ef1380eaf25a09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:27.920106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054471/publication.md
observed 74228afc99b20bd167a1f45310f80a2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:27.902363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054471/publication.txt
observed 5b94fbf84047a931b586e3dce9e07a33...
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.