OpenTechnical

OT-2026-000081400

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, 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-2026-000081400) never changes.

Identity and time

Publication numberOT-2026-000081400 · never reused
Internal UUID01a0ae96-f375-7f30-862b-ca74d2bdee31 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081400
StatusPUBLIC

Content hashes

Canonical text99216cfdf835e56abc98af763dd6f7cbd91b52c7c36054c9db1363aabd0cc474
Markdowncf8006b967929e98fadebe93fecba07e263b7d1fde59c5c09746ccf461fa59f3
PDF
Publication pageb996a2e778a53c103a67a632825678c43a7ee5cea40432dc2a401120d6831dbf
Manifestba36c14da628315bd8682905a16f177bf2c9ae810a3fadef22a6ef5781bf4a9b

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
SignaturebYlrRF76tJXjzTkrc00Te9eF4EAbITr0dgGWt8RZmVGimMHsL6UGdixFZDz5flDheBgN8vNbyfqKQoy6ivomAA==
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

2026-09-17T10:01:32.670069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081400
observed b996a2e778a53c103a67a632825678c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:32.653555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081400/manifest.json
observed ba36c14da628315bd8682905a16f177b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:32.633796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081400/publication.md
observed cf8006b967929e98fadebe93fecba07e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:32.617109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081400/publication.txt
observed 99216cfdf835e56abc98af763dd6f7cb...
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.