OpenTechnical

OT-2026-000084557

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, three stage ejector, sustained blow-off before 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-2026-000084557) never changes.

Identity and time

Publication numberOT-2026-000084557 · never reused
Internal UUID01a0ae98-e25a-7f82-ba96-2822d769c361 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084557
StatusPUBLIC

Content hashes

Canonical text735130f84d94435a25b9c070c98050a16f63c7fd65db568e6ee59edc04bd0c53
Markdownba540e19071788bf37cc89a85878435be60ea94de943267eee87337cd5110f65
PDF
Publication pageedaccca029a9fba0c5e05dfa4658ca583ac016b049f875bbec967529dc0e0cc9
Manifestc850358757f43273e678e263c19d3cff3222b2089bc387a70471a3cb09ff2ead

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
SignatureHHegA+XjXlL3ME3ztOA1h1gW3IuoIW3yEESxFiwi0E6cjrMmPCGGAYNGCALe3jxkH9iDrd/n1V6c7AzYKhiZDg==
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

2026-09-17T09:55:27.037953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084557
observed edaccca029a9fba0c5e05dfa4658ca58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:27.019472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084557/manifest.json
observed c850358757f43273e678e263c19d3cff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:27.001121ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084557/publication.md
observed ba540e19071788bf37cc89a85878435b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:26.984051ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084557/publication.txt
observed 735130f84d94435a25b9c070c98050a1...
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.