OpenTechnical

OT-2026-000005634

Publication integrity record

Bellows cup vacuum gripper, per zone isolation, pump 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-2026-000005634) never changes.

Identity and time

Publication numberOT-2026-000005634 · never reused
Internal UUID01a0a93f-b59c-7f92-8b36-67b001db1779 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:05:19.903519Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005634
StatusPUBLIC

Content hashes

Canonical textdeff9810168a2ffe59ebb46eef3b373746451da430d709d0e3aca170f745a175
Markdown428e73306e2943fe072511732c521c9d989009da53a9bef33a0fadb6744ac4d8
PDF
Publication page16ecd987f03a0a08351b81ac85e23156755fbd6fa9a8fd46ac5ee35e9d714c92
Manifest1af3e5a7f345733365711d092fc52b17759064d6561178e4020d3b62e7e2731d

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
Signaturel3rGQItqNUxnnN3gyDfBa9GDJ/6+lfIdwB8awTzvd5oz+s953Gw+sv42Djw/6gby2jo9De0CoONkdakCf/RfAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:18.233737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005634
observed 16ecd987f03a0a08351b81ac85e23156...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:18.218930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005634/manifest.json
observed 1af3e5a7f345733365711d092fc52b17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:18.204697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005634/publication.md
observed 428e73306e2943fe072511732c521c9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:18.189355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005634/publication.txt
observed deff9810168a2ffe59ebb46eef3b3737...
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.