OpenTechnical

OT-2026-000053503

Publication integrity record

Foam pad vacuum gripper, four zone face, three stage ejector, supply line pressure sensor, 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-2026-000053503) never changes.

Identity and time

Publication numberOT-2026-000053503 · never reused
Internal UUID01a0ae85-0a92-72d1-8633-92b264dd2fb2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053503
StatusPUBLIC

Content hashes

Canonical texta4c2a1f61ce3da52a04016aa07222cf64c4c44e49da22627aa9d47e2c98f34b5
Markdownc2ae80b48dac9504453eebf7f1f325b947019554cd7c4acdd438245955680e50
PDF
Publication page09c8832ebce947bacd3c0c8b69d68dc281c5a5ec91e4129e9233e2652dabda81
Manifest8dbe6034aaa8d59df2af4ae162cb56ea2d3551e7025143d7dada30434ff18a80

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
SignaturevYz44i5KooEMpW4uxH2t9q8yI9iryrzA6v9RoQvYVDTFeL5uEwMgnKruidGgTLFt96XuvYTU0lkQxZeh+q7GBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:55:20.760203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053503
observed 09c8832ebce947bacd3c0c8b69d68dc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:20.742317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053503/manifest.json
observed 8dbe6034aaa8d59df2af4ae162cb56ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:20.723785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053503/publication.md
observed c2ae80b48dac9504453eebf7f1f325b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:20.704595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053503/publication.txt
observed a4c2a1f61ce3da52a04016aa07222cf6...
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.