OpenTechnical

OT-2026-000074086

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-2026-000074086) never changes.

Identity and time

Publication numberOT-2026-000074086 · never reused
Internal UUID01a0ae93-2b8f-76cc-a20d-a40f323638c9 · 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-2026-000074086
StatusPUBLIC

Content hashes

Canonical textb66e5877832b490d0d5c4aeeff16a476ace50f7a77d07b746cd8ebdcaa70fbeb
Markdownf15f8ebacb7e96dfcb932684d17f009fa4bf11ce86c47340cb6d3636dd6c76c5
PDF
Publication page54214c41a1086da649f820d15135fa978c047bc45c88f59135511615a104a2be
Manifestdaf536a8862c5146b66b424f03debea8d792a93e5559cd90453081cf1964c670

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
SignatureX+SMi6nm4tdUsSs4WwR0LJUyh+UX4mtptiVopqKtpszq2gF9LiTqQz12V9uJNFYj7m1s7lzhjLeX+b+WU5WzDg==
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

2026-09-17T10:20:59.102887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074086
observed 54214c41a1086da649f820d15135fa97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:59.085209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074086/manifest.json
observed daf536a8862c5146b66b424f03debea8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:59.041476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074086/publication.md
observed f15f8ebacb7e96dfcb932684d17f009f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:59.017671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074086/publication.txt
observed b66e5877832b490d0d5c4aeeff16a476...
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.