OpenTechnical

OT-2026-000029884

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, 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-2026-000029884) never changes.

Identity and time

Publication numberOT-2026-000029884 · never reused
Internal UUID01a0ae73-ac48-7a0c-91c1-7afa95d7fdd8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029884
StatusPUBLIC

Content hashes

Canonical text478491dfb75d248ba3a3d79a661ac4a0cbb2c3ab566b61e4427740e8f125c5ca
Markdown5e5b699810621d1c6f0c0da0fa11dc288c3bde3457c035e28f1c2bd7e9d4993c
PDF
Publication page8e6a12557922fc96855209dc86557af97d7bde5731b88c29a2d37f87297506a0
Manifesta86c712205a3d22721718dd61b668fa13263d9f2c2ec31b0cd5347f4e5ae7f4b

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
Signature1ZTqjFWXm0Vvfip1wVEfJCqcKfZPnOTyiC1cvM0f9ecxXF5llKy2YpuNokEobpH8JEgdufiMj7oU4WpYVNZvBA==
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

2026-09-17T11:38:34.968827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029884
observed 8e6a12557922fc96855209dc86557af9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:34.951707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029884/manifest.json
observed a86c712205a3d22721718dd61b668fa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:34.935832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029884/publication.md
observed 5e5b699810621d1c6f0c0da0fa11dc28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:34.917887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029884/publication.txt
observed 478491dfb75d248ba3a3d79a661ac4a0...
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.