OpenTechnical

OT-2026-000055331

Publication integrity record

Foam pad vacuum gripper, two zone face, 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-2026-000055331) never changes.

Identity and time

Publication numberOT-2026-000055331 · never reused
Internal UUID01a0ae86-a100-7b04-97ad-dce7ae520d4c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055331
StatusPUBLIC

Content hashes

Canonical text36ac9ee010ac543686b852c72a5e7da74e2acb60d3b892c40062f4a3de8749ca
Markdown8f3121457a041c69edfff8f2a5135dd49bca9db3a654c677d1be819a5bf4ebce
PDF
Publication page25616003c2059a7526009ef46ca9ab3247fb39800ab865bbaaf08b94d2159fac
Manifestf8181a49a28f5e79f9147f45f628d9c324babd2b8401efcb21b4efbb0a67c636

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
SignaturezDn0UYiW0z8jIhQiaFsE1su3rLySzOv5xBTouMjd7YYGF26dqdfIYFbEYzSn2tUEFDzngby4h0z6m/bNy1eIAg==
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

2026-09-17T10:51:57.135551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055331
observed 25616003c2059a7526009ef46ca9ab32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:57.118635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055331/manifest.json
observed f8181a49a28f5e79f9147f45f628d9c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:57.101254ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055331/publication.md
observed 8f3121457a041c69edfff8f2a5135dd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:57.083356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055331/publication.txt
observed 36ac9ee010ac543686b852c72a5e7da7...
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.