OpenTechnical

OT-2026-000099719

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000099719) never changes.

Identity and time

Publication numberOT-2026-000099719 · never reused
Internal UUID01a0aea2-c977-77a6-ba32-bb3bde72e14c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099719
StatusPUBLIC

Content hashes

Canonical textbd3b8905b755acb6b2df61c6c96e18b155b56d1dd84e22160b652f99ee262510
Markdown0d52e3db2e930f84163037cf0ebcda1ec7647ca5d531a057e57d6ce9265043df
PDF
Publication page5e448f93e64c3947ad87f6623637be145f1c31ee355501f61ebc782b54c574df
Manifest8040c0fe548b2217eadb8f3afd44705e1e00b44082144cb31915fd003ad94886

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
SignatureWP9+6nsh2DQRvUQJjwarV5joCZD1XER20ZQWTivtiPtEuvSvOK0Y32eTIH9vLglu2jaZDaSkfvLbjmyPaBKLCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:29:44.336567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099719
observed 5e448f93e64c3947ad87f6623637be14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.319995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099719/manifest.json
observed 8040c0fe548b2217eadb8f3afd44705e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.303917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099719/publication.md
observed 0d52e3db2e930f84163037cf0ebcda1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.287847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099719/publication.txt
observed bd3b8905b755acb6b2df61c6c96e18b1...
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.