OpenTechnical

OT-2026-000005687

Publication integrity record

Vacuum cup gripper, four zone face, three stage ejector, contact triggered, vented after set down

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-2026-000005687) never changes.

Identity and time

Publication numberOT-2026-000005687 · never reused
Internal UUID01a0a941-760a-7a33-95cc-73b0d20ed402 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:07:14.702014Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005687
StatusPUBLIC

Content hashes

Canonical text09855c3b020b9c3056666e22d6c0b646d596a500a8707985e85a9ae097133911
Markdown97c603c21856c1c73a626dddc759807b5f165a2032d4144622bdbae10f6a6576
PDF
Publication page686568a616553e7843628bddba2cff4e7d8637c06a720cc83b3d6cc2e04d9f1d
Manifest36e9b37f67c8dc7058debaa738bed997d0a8c164816632704aa065c77ea737a5

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
SignatureC6ZX9IKptZLuXxMmHQDFp1slVdVCbs6FiKexPHcdCbJByqNCPxHzIGZ9roealWtXGB+JvpEX/BFltZ1pzG7nBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:10:11.711225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005687
observed 686568a616553e7843628bddba2cff4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:11.695314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005687/manifest.json
observed 36e9b37f67c8dc7058debaa738bed997...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:11.681042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005687/publication.md
observed 97c603c21856c1c73a626dddc759807b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:11.666599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005687/publication.txt
observed 09855c3b020b9c3056666e22d6c0b646...
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.