OpenTechnical

OT-2026-000027175

Publication integrity record

Three cup vacuum gripper, three zone face, two stage ejector, pulsed 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-2026-000027175) never changes.

Identity and time

Publication numberOT-2026-000027175 · never reused
Internal UUID01a0ae72-3454-72c2-8ba6-f8762d79b3ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027175
StatusPUBLIC

Content hashes

Canonical text26c527d4db0bdc14e46865b45151fae4ea6448068822c102461f7f9374897dbd
Markdownddd019e9ce7a70983e392247e550740335af08b82d75bc263f42757cda98e886
PDF
Publication pagec8b902ed033435f0aa7a681fc36efd71cf735c9ec1c93288bc8c4a387c294f2d
Manifest1f72b5785bac1da1040350668bdd122418bb4968a97e189b7e20897580385a4c

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
SignaturevkBWKvTh7NCtJTcGBST+GPogFMyXrqkbnaMUzBsT8/keSGEXW3yYiGMIV6h9Psq+I1Q1OSmklWnettJXTerSCw==
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

2026-09-17T11:44:03.421593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027175
observed c8b902ed033435f0aa7a681fc36efd71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:57.547573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027175/manifest.json
observed 1f72b5785bac1da1040350668bdd1224...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:57.528329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027175/publication.md
observed ddd019e9ce7a70983e392247e5507403...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:57.506090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027175/publication.txt
observed 26c527d4db0bdc14e46865b45151fae4...
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.