OpenTechnical

OT-2026-000072465

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000072465) never changes.

Identity and time

Publication numberOT-2026-000072465 · never reused
Internal UUID01a0ae92-89d8-70bd-a91b-f4cbb33360b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072465
StatusPUBLIC

Content hashes

Canonical text4a844ef2f4aa0f2a9b7ab5aac96ca656684a20b9eb5fdcc85b35c17fee646b2c
Markdown78dca5be94491fecfd8273ef05a4c824f93b04fcd63a6c620837380f76f616fc
PDF
Publication page084a13c2f07295d28c694188d0b1c3941a1ea8a92b14223503b100e5d4767fe4
Manifestbdf1378b81528acd3e9b3b084a7e163e1de7aacc0374b2da5668867c0f63446a

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
Signaturec30rv0TgDTX2YiC7TJoB1cqG15EA4QscZtiypSk4VZShw5/JRo/+oOmapVQXRg5NitofPWXgI5IKPq1G15v2DA==
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

2026-09-17T10:22:17.320416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072465
observed 084a13c2f07295d28c694188d0b1c394...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:17.302410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072465/manifest.json
observed bdf1378b81528acd3e9b3b084a7e163e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:17.284665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072465/publication.md
observed 78dca5be94491fecfd8273ef05a4c824...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:17.267996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072465/publication.txt
observed 4a844ef2f4aa0f2a9b7ab5aac96ca656...
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.