OpenTechnical

OT-2026-000074098

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line 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-2026-000074098) never changes.

Identity and time

Publication numberOT-2026-000074098 · never reused
Internal UUID01a0ae93-2b8f-745b-bf2f-89ac19553ff7 · 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-2026-000074098
StatusPUBLIC

Content hashes

Canonical text8d84c07b8a0befa7c3f172cfadd587e6d36f28c59e8ab95deb64be4a419e3e02
Markdown3670922a2d28dbb2210dafe93303efa32a5f6d07cce129a159a58a243e4b3a42
PDF
Publication page27b4b3f9a3437d7f65a4a5e898a862737ff0b5b527d1acdd589a0ebe998ab20d
Manifest603b0c6a627c7b2b04af8806fffa8fa5d40d0db749941de7d344fbcf5be0f8b5

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
SignatureJHwF9QcrGG7VzrBYmgdrBcypHAkxS4Z36A7QrTpT0RdCLPUjhWy7OHSEXu/QrYh20MCYfSUM04kI6X2ST4WrBw==
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

2026-09-17T10:21:00.437508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074098
observed 27b4b3f9a3437d7f65a4a5e898a86273...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:00.418823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074098/manifest.json
observed 603b0c6a627c7b2b04af8806fffa8fa5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:00.399462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074098/publication.md
observed 3670922a2d28dbb2210dafe93303efa3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:00.378849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074098/publication.txt
observed 8d84c07b8a0befa7c3f172cfadd587e6...
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.