OpenTechnical

OT-2026-000066647

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000066647) never changes.

Identity and time

Publication numberOT-2026-000066647 · never reused
Internal UUID01a0ae8e-ce42-7bf5-b490-ab89b293ac2c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066647
StatusPUBLIC

Content hashes

Canonical text7d4b53f4851af5bde1d1a82b734dce095f246e549d3acb28f988216d9f8b2d97
Markdown510279f37f45d7133392befe9423ff22dbfaa7c92290336eaf3659797d78ddcc
PDF
Publication pageb7a8e251ea3a888c37f14333a4c91a47dfd5bb3e709ff75daeac6acdebe6cd77
Manifeste24c8243d7ee7cd48b5fc24561640bd56463bf43fa6d407eed55a1c7cdb83696

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
SignatureI0wv7rOmAZ7YTuB4GgtWuVmY4DQLvphNlg600dsumbQQxzMhTPqVm2QgaNGdrOzNnO1tLVGbqQxuCVps4rH1BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:33:01.841347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066647
observed b7a8e251ea3a888c37f14333a4c91a47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:33:01.823108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066647/manifest.json
observed e24c8243d7ee7cd48b5fc24561640bd5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:33:01.806219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066647/publication.md
observed 510279f37f45d7133392befe9423ff22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:33:01.787908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066647/publication.txt
observed 7d4b53f4851af5bde1d1a82b734dce09...
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.