OpenTechnical

OT-2026-000017217

Publication integrity record

Single cup vacuum gripper, two stage ejector, supply line pressure sensor, 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-2026-000017217) never changes.

Identity and time

Publication numberOT-2026-000017217 · never reused
Internal UUID01a0ae6e-76c7-7a60-b9bd-bb109835a1fa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017217
StatusPUBLIC

Content hashes

Canonical textb5d601df8e4918c81ba1180b4e29c5189192d1217e543fe5790e1862127bede8
Markdown500f9f2f7989cbe3be4c54db146c2dd0ba0d4eaa3e99676db207b6e01615e4b8
PDF
Publication page848cb2ba3b8bdd54f7726a230e803e46c0c76abc1d7f192301342af6721bdfba
Manifest4d36d8c407e5db3327ecd01225ac9b734828f817add3be6b7d27528c97d0a646

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
SignaturezTDldDGoWEmfdd7mM8ir9O/ykhDvXBKUrCIZceYpuFyOTTH581ugiEWjo3vLJ99fsZxlQWGKDSlY95kohUXlAA==
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

2026-09-17T12:02:17.719319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017217
observed 848cb2ba3b8bdd54f7726a230e803e46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:17.702896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017217/manifest.json
observed 4d36d8c407e5db3327ecd01225ac9b73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:17.685687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017217/publication.md
observed 500f9f2f7989cbe3be4c54db146c2dd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:17.668882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017217/publication.txt
observed b5d601df8e4918c81ba1180b4e29c518...
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.