OpenTechnical

OT-2026-000042130

Publication integrity record

Foam pad vacuum gripper, common isolation valve, two stage ejector, sustained blow-off after 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-2026-000042130) never changes.

Identity and time

Publication numberOT-2026-000042130 · never reused
Internal UUID01a0ae7a-5d71-7196-8a09-6ebbcbd9eb92 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042130
StatusPUBLIC

Content hashes

Canonical text5758b5ed79271c8b0e09d240817e2467a8a9ea788c2109a7d6226fa898ae97a5
Markdowna56a603a288168989638352419b1fe801b197de3fafcc23ba64bcd4fffb515e5
PDF
Publication pagef47723f9743642946b5063ffb044d5a16b08388cf9666a8f50032b121e085d50
Manifest7fd71fc9066c93801ea0ae7ab0d74ab5e6918d3db3b588a23771927c2586442e

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
Signature9verU8oWKzyB5erSnCpTmu7y1Apv75cSRf2CZF/7aHbS436MFwRwASSiRk/3FKmlYa5rr/yf2v3xYM2vxK1oBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:15:40.571177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042130
observed f47723f9743642946b5063ffb044d5a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:40.553900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042130/manifest.json
observed 7fd71fc9066c93801ea0ae7ab0d74ab5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:40.534203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042130/publication.md
observed a56a603a288168989638352419b1fe80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:40.515899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042130/publication.txt
observed 5758b5ed79271c8b0e09d240817e2467...
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.