OpenTechnical

OT-2026-000017257

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, pulsed blow-off before 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-2026-000017257) never changes.

Identity and time

Publication numberOT-2026-000017257 · never reused
Internal UUID01a0ae6e-76c8-72c7-855e-76c0cc0269a4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017257
StatusPUBLIC

Content hashes

Canonical text66e842ab3e418f5114b6e57c00bd4c5a516a48c8d6cd5ea5503b2c7176aa7d36
Markdown40a836f5aa3eabee2764a1e37395bc10ad1a85af139f18ec98348f4393214573
PDF
Publication page1f5fd1b4d40eb6bf8c9faa26970c1719f5090688210efa4c2d04659fd76e8cdf
Manifest9930afa9235f2ad7e3b2b2ec289f1a554ee4575655354295f3358cc76acb74bc

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
SignatureHM5nvNYWcvMf4Hi5mnBtYDoQdZtw7SqXU+gV+lvz7dMzCJEpYLpb0qXDgMicw1gKNbOIz6d+8Q7YBiqoQ902BQ==
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

2026-09-17T12:02:20.782345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017257
observed 1f5fd1b4d40eb6bf8c9faa26970c1719...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:20.672317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017257/manifest.json
observed 9930afa9235f2ad7e3b2b2ec289f1a55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:20.653634ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017257/publication.md
observed 40a836f5aa3eabee2764a1e37395bc10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:20.634220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017257/publication.txt
observed 66e842ab3e418f5114b6e57c00bd4c5a...
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.