OpenTechnical

OT-2026-000004630

Publication integrity record

Bellows cup vacuum gripper, two zone face, plant vacuum fed, pressure verified

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-2026-000004630) never changes.

Identity and time

Publication numberOT-2026-000004630 · never reused
Internal UUID01a0a91e-3f47-7a2c-b419-7da527a7e7ed · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:28:46.922571Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004630
StatusPUBLIC

Content hashes

Canonical text91c592af2f9b242e8385616d5aa5bc2aa6ce32e03c810140158cb02ce9320488
Markdown6771f7e1b48cff5fe1143acc8655339172baa3a1474afb24867b6ee3734dd018
PDF
Publication page05fd04032b2ef5d303e55baf6b23fef56337b5ee3be63161e3b63d326507dff0
Manifest4b35eb39a70f97485afa9ca94f95b52e7253030bf85fb5ca78959f8dd576553d

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
SignatureTp/noKjuW8KBl/xO+clGS4LyOBqyAgECkDiupVrvbd78Z49ZzORsbJw41agwDfEwrrRPPrgK7sX4pD+bQcTZCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:30:07.211050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004630
observed 05fd04032b2ef5d303e55baf6b23fef5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:07.199086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004630/manifest.json
observed 4b35eb39a70f97485afa9ca94f95b52e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:07.188237ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004630/publication.md
observed 6771f7e1b48cff5fe1143acc86553391...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:07.175286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004630/publication.txt
observed 91c592af2f9b242e8385616d5aa5bc2a...
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.