OpenTechnical

OT-2026-000048618

Publication integrity record

Foam pad vacuum gripper, pump fed, supply line 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-2026-000048618) never changes.

Identity and time

Publication numberOT-2026-000048618 · never reused
Internal UUID01a0ae80-4de8-7b1f-a224-c3b9bf483e4c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048618
StatusPUBLIC

Content hashes

Canonical textcdef1b659857bfb77b26c36d6553a62c8211924a7bb7d61a0c3eae82c37bdfde
Markdown3bda378bcb1057764e9e79021f288e16cc9fa74b5bd6b2815e5b510d21a578dd
PDF
Publication page81be8b90224c9e5cec9000a2f8b28c83a1570c0422f4679ab6b86db922aa330b
Manifest77b46e65451cd16759b651b3b0843e126fc08ad148f78087f17f93fcf4d4f9ad

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
SignaturegNP29bUbkHtdeWqfO+dz4JBYESw/qO4MWNwnP+QgZQTtUqrhx8/OoyWm/IbWDjdakYIAKso82sDezzKbdpdpDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:05:26.214286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048618
observed 81be8b90224c9e5cec9000a2f8b28c83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:26.194961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048618/manifest.json
observed 77b46e65451cd16759b651b3b0843e12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:26.176297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048618/publication.md
observed 3bda378bcb1057764e9e79021f288e16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:26.156445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048618/publication.txt
observed cdef1b659857bfb77b26c36d6553a62c...
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.