OpenTechnical

OT-2026-000011800

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000011800) never changes.

Identity and time

Publication numberOT-2026-000011800 · never reused
Internal UUID01a0ae6d-1941-7649-8fe5-156f4c8c54dc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011800
StatusPUBLIC

Content hashes

Canonical textacdf49653534bb4d4dd5ddf2f2c5969e7b574e305400259b85bef18d57fbda52
Markdownb5616c20e19417e620e7a22cbaaa8c2d615dd4a0c289eed858a79bcaadc77ab0
PDF
Publication pageb9dd7606b39ce6c7a0cfd59fbeca1e63f002745b989d752686c99dda70d88708
Manifestc21d045ec4a4905dd93cae394b41003aef86c0ce797f4e9b18181d5faceb8cb5

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
SignatureYqACXV8NnJvdexB1kuHJH0MY7p771oMyPXWaXT/q8fsma5YLO3w9bWRGH0UFUEGB+/XetmgABboOhxi1BJGRCw==
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

2026-09-17T12:12:31.535578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011800
observed b9dd7606b39ce6c7a0cfd59fbeca1e63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:31.517008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011800/manifest.json
observed c21d045ec4a4905dd93cae394b41003a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:31.496464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011800/publication.md
observed b5616c20e19417e620e7a22cbaaa8c2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:31.477556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011800/publication.txt
observed acdf49653534bb4d4dd5ddf2f2c5969e...
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.