OpenTechnical

OT-2026-000087503

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, supply line pressure sensor, 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-2026-000087503) never changes.

Identity and time

Publication numberOT-2026-000087503 · never reused
Internal UUID01a0ae9a-cd51-76be-9e21-2425e1069da8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087503
StatusPUBLIC

Content hashes

Canonical textfbd1aaea4dbd1125ec21dee774248d8b88483b619a19885944fb016806538961
Markdown4c2378dba1eb0931b89a7fea2e6f8ffc11794a2c7967e5507168ec3188007c04
PDF
Publication page61ae31bc0d846b1929b9527bb7c30caca3af5d80bb5714d8b5c7d5a38ba680e8
Manifest449a6f3a8eaa6f91495fa2035cc3daeeec7c7a914e8348e514129c42ec856fd8

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
SignatureqtmdOxjbctVO4BgjvFQKIUMJTFbWV4j0cjijk1EJ2ZdQAl7Y4WJ2Wng6A3MxlD2Se+oe6nsL2j+IdCzoYXYaAw==
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

2026-09-17T09:50:50.168307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087503
observed 61ae31bc0d846b1929b9527bb7c30cac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.152584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087503/manifest.json
observed 449a6f3a8eaa6f91495fa2035cc3daee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.135165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087503/publication.md
observed 4c2378dba1eb0931b89a7fea2e6f8ffc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.118488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087503/publication.txt
observed fbd1aaea4dbd1125ec21dee774248d8b...
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.