OpenTechnical

OT-2026-000027516

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, 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-2026-000027516) never changes.

Identity and time

Publication numberOT-2026-000027516 · never reused
Internal UUID01a0ae72-6998-7f76-b939-ebfc530fbd9f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027516
StatusPUBLIC

Content hashes

Canonical textd4b333c8880929c58670f15f86b2ec5ce237f282fcb3db855d7dba2e70002066
Markdown190b745ceab780c748082fefe28643592538eb75699619aa6475e48349a95afd
PDF
Publication page88f9d183535e7b14649a6a0fb3e08ddb5107795d08bb26ff20034484b0e32531
Manifest906f5b2149ff65d675534689497b407e4138e72616e9e7805f6641e11a583952

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
Signature+p5+jQdyD4CfwA+cNcQ2hUcuOnd0ePJOyXos1GbZ3H7YpLXgPuBngAx0Wyi80mfbEhJhOCYuFPMVDqyfQXzZCg==
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

2026-09-17T11:42:59.647205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027516
observed 88f9d183535e7b14649a6a0fb3e08ddb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:59.627220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027516/manifest.json
observed 906f5b2149ff65d675534689497b407e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:59.607777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027516/publication.md
observed 190b745ceab780c748082fefe2864359...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:59.587989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027516/publication.txt
observed d4b333c8880929c58670f15f86b2ec5c...
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.