OpenTechnical

OT-2026-000043178

Publication integrity record

Foam pad vacuum gripper, two stage ejector, sustained blow-off after 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-2026-000043178) never changes.

Identity and time

Publication numberOT-2026-000043178 · never reused
Internal UUID01a0ae7b-327c-7266-b289-3c1278a781c4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043178
StatusPUBLIC

Content hashes

Canonical text95bcd29025b2f0a692b4db9b99828ec0d02b30058a4a866e26f7d50cfeecc6a0
Markdownc8708543058256d5d01f1b1770f08deae188ff81b2435733d052b95af70bb8d3
PDF
Publication page838edaf3140824f667f26a6015556ad502140fc1e6c494a281d3a85fb15e851d
Manifestf7b692a3d09820de961cca0cfcd1bdd635554c1978453414d5f505828a7597b7

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
SignatureRa8igQbTNClZ56ohupFYoyXHbexbuxBZaZ+J/+bNT6WyNbSVxPjbXK9ihaLMzrwWjtiUcoOmkEkw33er4G3FBg==
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

2026-09-17T11:13:37.699615ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043178
observed 838edaf3140824f667f26a6015556ad5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:37.680745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043178/manifest.json
observed f7b692a3d09820de961cca0cfcd1bdd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:37.661288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043178/publication.md
observed c8708543058256d5d01f1b1770f08dea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:37.642819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043178/publication.txt
observed 95bcd29025b2f0a692b4db9b99828ec0...
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.