OpenTechnical

OT-2026-000049519

Publication integrity record

Foam pad vacuum gripper, two zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000049519) never changes.

Identity and time

Publication numberOT-2026-000049519 · never reused
Internal UUID01a0ae81-8f7c-7b3d-871c-28ea6bf6bb0e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049519
StatusPUBLIC

Content hashes

Canonical texte43ca5136ffd6cab3f54597bfad65493ca93ac2e5efd19df55c4b344dce6c36f
Markdown4cf091fbff692f05c5c0ea0c4e28c9b8cc530f93895abea28ad8ca5e8e9f37fc
PDF
Publication pagef6c2ea9e463640375ad9e7de5f75150afca0733fc52f98745b0ab36c2dee97ae
Manifest15e0714595fd48210b6ee5ff2e93356780423940986e7e3e6c3751e9218e293d

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
Signature7IM70278kC5oLUg3HEt/VoSYfEOLsUUYr0wl9T72Y4dDIxRZQm3qCtW3UCEqTJZKUlqVH7KqYn1w9QA9bsDpCw==
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

2026-09-17T11:02:22.715659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049519
observed f6c2ea9e463640375ad9e7de5f75150a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:22.698720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049519/manifest.json
observed 15e0714595fd48210b6ee5ff2e933567...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:22.680439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049519/publication.md
observed 4cf091fbff692f05c5c0ea0c4e28c9b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:22.662007ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049519/publication.txt
observed e43ca5136ffd6cab3f54597bfad65493...
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.