OpenTechnical

OT-2026-000063554

Publication integrity record

Foam pad vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000063554) never changes.

Identity and time

Publication numberOT-2026-000063554 · never reused
Internal UUID01a0ae8c-f945-719b-90de-bdc8a16a161e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:47:49.602795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000063554
StatusPUBLIC

Content hashes

Canonical text0a0507b4d0011c6a2e9deae8cb5bdfe090e7af1a5d1543ec67a5c7b90b39d3f1
Markdownb875d2df1ff034ef0fda8f5ee39d128e4d9b320e276f23665dd581a8c8a570d4
PDF
Publication page6d7e664ec4326636d234a96a56f9b5007cbfb4118658ae4178b299275d801604
Manifest55745298f7c727848e354636b5770fe1fac924181a8287b70fb329bfcf4da79f

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
SignatureFkaB8bnD47WrC4O5ED1DJNf8THmrqpCBJjpIPAvR23r5HkNwl/ZvVjvDoFiApbQEk91OEYhy1C/Fz+lOmr0SAA==
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

2026-09-17T10:37:33.409801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063554
observed 6d7e664ec4326636d234a96a56f9b500...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:33.389686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063554/manifest.json
observed 55745298f7c727848e354636b5770fe1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:33.369306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063554/publication.md
observed b875d2df1ff034ef0fda8f5ee39d128e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:33.350635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063554/publication.txt
observed 0a0507b4d0011c6a2e9deae8cb5bdfe0...
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.