OpenTechnical

OT-2026-000042241

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump fed, sustained blow-off 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-2026-000042241) never changes.

Identity and time

Publication numberOT-2026-000042241 · never reused
Internal UUID01a0ae7a-5d72-753f-b9e6-2ce9cdfe57dd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042241
StatusPUBLIC

Content hashes

Canonical text82886143d7ea3b5943c0819fe4dd7ca2e1392b7207ebc521e13187e450c1a910
Markdown89317c32ec53686dd3963a33e217d76d7fee2fde69c4dea931f461773dac8d1b
PDF
Publication page55c4a45e64dbd5086e713e1b3664b9bfcdd94eca73d35b34b7573351c6996353
Manifest0ad9924e0233907ec8f7e1dd2803d148c90d34aa00e92e1bf6cb4c14355b2e55

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
Signature4vxkcxmS4HxMFpU8Uc4YYOsePQQ9Z435B4AWp1lhaU93E3LJ8r8IFBSNA9QxuwTjgjMVc29MWgdqEt9YuiCfCg==
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

2026-09-17T11:15:55.291211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042241
observed 55c4a45e64dbd5086e713e1b3664b9bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:55.273794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042241/manifest.json
observed 0ad9924e0233907ec8f7e1dd2803d148...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:55.256088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042241/publication.md
observed 89317c32ec53686dd3963a33e217d76d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:55.237272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042241/publication.txt
observed 82886143d7ea3b5943c0819fe4dd7ca2...
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.