OpenTechnical

OT-2026-000081694

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, two stage ejector, supply line pressure sensor, vented after set-down, on a tool changer

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-2026-000081694) never changes.

Identity and time

Publication numberOT-2026-000081694 · never reused
Internal UUID01a0ae97-0f73-7325-80d6-279248d66f26 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081694
StatusPUBLIC

Content hashes

Canonical text7443b50925adaee0310ccd7b909cd6ce51ba61640f169ea3ce50d94a1d6a6d25
Markdowna174143a08aae1c10572b735826115f479dd6a153b26415c2c9fbf547d061aa4
PDF
Publication pageafd99768bfa2e8b8ba4e37c773badea95cd3a1a417105f456ab275ddde4d8562
Manifestc15c46a44585500ece7b8d5a9b40331be53ad5355adba23ef204ee9a47f4f1d5

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
Signaturewgyb3Rc9RVNHamAkfp5gyxbu1BaTido1rZy4KbYgHnjOSaLVbfx686dU2rnmlnoEm0RhP3+Lkp4Cegdaw1XPCg==
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

2026-09-29T12:41:07.455533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694
observed afd99768bfa2e8b8ba4e37c773badea9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T12:41:07.319478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694/manifest.json
observed c15c46a44585500ece7b8d5a9b40331b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T12:41:07.231771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694/publication.md
observed a174143a08aae1c10572b735826115f4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T12:41:07.054459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694/publication.txt
observed 7443b50925adaee0310ccd7b909cd6ce...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-21T16:41:46.112043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694
observed afd99768bfa2e8b8ba4e37c773badea9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-21T16:41:46.060748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694/manifest.json
observed c15c46a44585500ece7b8d5a9b40331b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-21T16:41:45.999859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694/publication.md
observed a174143a08aae1c10572b735826115f4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-21T16:41:45.914475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081694/publication.txt
observed 7443b50925adaee0310ccd7b909cd6ce...
fetched by grabo-systems from 34.44.131.203, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent