OpenTechnical

OT-2026-000007049

Publication integrity record

Vacuum cup gripper, pump fed, contact triggered on the face, polyurethane cups, oval form

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-2026-000007049) never changes.

Identity and time

Publication numberOT-2026-000007049 · never reused
Internal UUID01a0a970-d1db-7a57-aa5a-b91d7edb9a5c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:58:58.398395Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007049
StatusPUBLIC

Content hashes

Canonical text6cb2bf1c4ecff9c8d9024ad66324758d1b8460680c1aadf08a997eb8abc1f8b9
Markdown0d7c9545f2c47e2caa26848e1b969a9e4920841919581281b462bc223bfd5624
PDF
Publication page28de21ce6c25f832660ecafe6592c63abc789d532db7fc8e0a5b4221a860d188
Manifest16b663e6ad010b116440a49944a09c492be2a4537428579141943cb59b4e4a7c

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
Signature9RMYuf3RWCCwpvxIjK5weucwXt0lBHh1FLqswTk2uCx73kZda6eSZHoFtjKB5qt3QfuXxQVvo0l5M2XimK6NAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:07.887354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007049
observed 28de21ce6c25f832660ecafe6592c63a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:07.750235ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007049/manifest.json
observed 16b663e6ad010b116440a49944a09c49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:07.737341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007049/publication.md
observed 0d7c9545f2c47e2caa26848e1b969a9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:07.723830ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007049/publication.txt
observed 6cb2bf1c4ecff9c8d9024ad66324758d...
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.