OpenTechnical

OT-2026-000073646

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented before set-down

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-2026-000073646) never changes.

Identity and time

Publication numberOT-2026-000073646 · never reused
Internal UUID01a0ae93-2b8c-7bb6-9e0b-1bba835ec032 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073646
StatusPUBLIC

Content hashes

Canonical text7a8747520d3f60a713b1d731daf8422c273c115dd2dbec2a891d96cbcb018dca
Markdown13410902eb1ad66f8eca37f2550a4d21994d8bc01d5c65a8ff9fc56c5c22404d
PDF
Publication page3870610454a7986df3a3adf5fc68c1943ac3f93b683f4682b8a06f46e0756fb2
Manifest4079fbc33fc8085764baddc3e371aedb368a0181aeced4b7065296d71ba02a33

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
SignaturesiYHzBUOmS2GQAEoGBee8li1ClGLkY0L4bBlwEpXl39/Q3PR3gKsPdtejQNfQvqi96mhfv0HsFNdIaUzmBHxCw==
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

2026-09-17T10:19:41.660855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073646
observed 3870610454a7986df3a3adf5fc68c194...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:41.641560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073646/manifest.json
observed 4079fbc33fc8085764baddc3e371aedb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:41.621388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073646/publication.md
observed 13410902eb1ad66f8eca37f2550a4d21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:41.599268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073646/publication.txt
observed 7a8747520d3f60a713b1d731daf8422c...
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.