OpenTechnical

OT-2026-000100549

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, sustained blow-off 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-2026-000100549) never changes.

Identity and time

Publication numberOT-2026-000100549 · never reused
Internal UUID01a0aea3-66f1-765a-9ea3-f04eea392915 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100549
StatusPUBLIC

Content hashes

Canonical text1012a0dab5bb3cfbcaa87ad21b18e7628cb437f31fee3c85c20806df04b978d4
Markdownb73a1607ff251ddd60851cec7bc2dc6abccab8387796c23aaba5a5e417f7e7fd
PDF
Publication page027f9b712b9683b0df4da00bca09129ce50eaf46760407f7a1f6ed4a31056820
Manifest7dabfb5f09787f82ac69a5a21cee63745952e992d871d19fb0f7d9e584b4fd81

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
SignaturexXhNkskTrOcrtO+3MtfWsRqyO/Pbj0H8kxZ6sL40PLX7UkrWSwhRxj8z9XYWMGfzjN/VmxylJB5lPhqFA/YqDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:19.315683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100549
observed 027f9b712b9683b0df4da00bca09129c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:19.297813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100549/manifest.json
observed 7dabfb5f09787f82ac69a5a21cee6374...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:19.280692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100549/publication.md
observed b73a1607ff251ddd60851cec7bc2dc6a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:19.263936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100549/publication.txt
observed 1012a0dab5bb3cfbcaa87ad21b18e762...
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.