OpenTechnical

OT-2026-000100454

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, sustained 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-2026-000100454) never changes.

Identity and time

Publication numberOT-2026-000100454 · never reused
Internal UUID01a0aea3-66ef-7fda-aa4c-43625ab391a3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100454
StatusPUBLIC

Content hashes

Canonical text9ddff2a2579681414587c749bfa652b19344e6fc66abbf1c02224498c8045165
Markdownd68ffbccadee97968c35288b47b72240070424298a73194498dd951b9d433e8b
PDF
Publication page46d1efe0371b4329011dd6b9f67bf6d62731098e955b3946b69f2772b6667fe1
Manifestd874a01b62e96f2627e7c3346cf8d84b7d3523aadd24b1c4972e664cef5d5bd8

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
Signature89nx9xYW+A8dnZsO0iY2xoTmZSp2CX4V1xwTBABnI30SFKCLp7vOaJBRxe2Bes9Sol9zWrdWI52kojtUetTlBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:12.115631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100454
observed 46d1efe0371b4329011dd6b9f67bf6d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:12.098021ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100454/manifest.json
observed d874a01b62e96f2627e7c3346cf8d84b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:12.079716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100454/publication.md
observed d68ffbccadee97968c35288b47b72240...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:12.061796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100454/publication.txt
observed 9ddff2a2579681414587c749bfa652b1...
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.