OpenTechnical

OT-2026-000102200

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000102200) never changes.

Identity and time

Publication numberOT-2026-000102200 · never reused
Internal UUID01a0aea4-50f3-77c4-a665-3ab7d86ad816 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102200
StatusPUBLIC

Content hashes

Canonical text99f446bdfd372c168190a6b72be8c39d69459585d93f106f06833f69afea76be
Markdown490c4912134874494a56dee792d933d91fd776764236adf4ba9ebc475af036c6
PDF
Publication page384499cea6af945c150e0e5eaf00d90a3e30283bed44ff6ae111ea578e08a624
Manifestcefd948af0315524e82ce71084266ff2aaf9ef7020820368fa6fcf377faa507f

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
Signaturej2GRPGcG+zFxNqQGsqtL3gexglsgwBrL/BAcRQ7y4GQIeEobfIO8ncDmCaXGcCi3PvayOD22iSaDRUHuS/oiCw==
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

2026-09-17T09:25:22.384186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102200
observed 384499cea6af945c150e0e5eaf00d90a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.366107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102200/manifest.json
observed cefd948af0315524e82ce71084266ff2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.346491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102200/publication.md
observed 490c4912134874494a56dee792d933d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:22.328045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102200/publication.txt
observed 99f446bdfd372c168190a6b72be8c39d...
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.