OpenTechnical

OT-2026-000069746

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained blow-off after 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-2026-000069746) never changes.

Identity and time

Publication numberOT-2026-000069746 · never reused
Internal UUID01a0ae91-185f-71de-8902-7c7cd628ebf2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069746
StatusPUBLIC

Content hashes

Canonical textd17608363753384788b01653a77a1a8a2d6db2a4744b625123c0e9cc64bcb0c3
Markdown7622fe4d30f8e76f8db6716b7b2ec32e49c8197ccc4c2dafc0270fa7052a569d
PDF
Publication page4add834507bddda1a3d7e40071f8fda50e511ebb0fbf0b6cef3dfd1570c59296
Manifest69767445af9e45c8cd7bcb8475823df1b323af2cdc4d074e9945440560918e49

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
SignaturediYYWzFt6VaOnIu8qrfQIK5ewc69A3KB4c0guzTLPkoQIJxvsHDPVKqhDgz/AYWOsXiNcaz1fnjyHsaudLWiCA==
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

2026-09-17T10:26:33.920153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069746
observed 4add834507bddda1a3d7e40071f8fda5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:33.902080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069746/manifest.json
observed 69767445af9e45c8cd7bcb8475823df1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:33.883439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069746/publication.md
observed 7622fe4d30f8e76f8db6716b7b2ec32e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:33.865592ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069746/publication.txt
observed d17608363753384788b01653a77a1a8a...
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.