OpenTechnical

OT-2026-000087873

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, single stage ejector, supply line pressure sensor, 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-2026-000087873) never changes.

Identity and time

Publication numberOT-2026-000087873 · never reused
Internal UUID01a0ae9b-1aa5-750c-b490-c4c91b05c6e0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087873
StatusPUBLIC

Content hashes

Canonical text1709501ad157c1250e394da8c0816fc3669fe7dfde67a19e2dd4f237fd3a4b41
Markdownd16114669618f5db3e80e052bc28d6b205400a1de8d0d980e5a21794a3dcb6da
PDF
Publication pagec475d800b7526198f2719c131cb9529215d9af9b1495a4500d24c1e544bfc5f7
Manifestaa26389690339b30d4e68efdd76ed6789a2e751477ed902475236955e9bd9a72

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
SignatureZ5xrgOkojyCPyA4vTOdGYlBImu88UuTBMnowj5WMSMENyPhnIcPKBQvLu1SMUxENQXuc8Ukwur1hqA2WIwoWAg==
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

2026-09-17T09:49:07.906856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087873
observed c475d800b7526198f2719c131cb95292...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:07.883785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087873/manifest.json
observed aa26389690339b30d4e68efdd76ed678...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:07.863466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087873/publication.md
observed d16114669618f5db3e80e052bc28d6b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:07.842098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087873/publication.txt
observed 1709501ad157c1250e394da8c0816fc3...
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.