OpenTechnical

OT-2026-000027447

Publication integrity record

Foam pad vacuum gripper, three zone face, plant vacuum fed, 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-2026-000027447) never changes.

Identity and time

Publication numberOT-2026-000027447 · never reused
Internal UUID01a0ae72-6998-756f-8a4d-47cd735636d0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027447
StatusPUBLIC

Content hashes

Canonical text01ac782ee63f88a559e14d1068c1c4e8e67ea662752d4b6aeabeff8a3edf9860
Markdown9367883dcddd21d245f01cc69c2870eacb90342960292c7199bd32c864b271df
PDF
Publication pagef98ccdcb47d99fb0547a38371ff44305f8fb93bb501fc24fddb2ccdaa837d5e3
Manifest48c80d52cee50f4263db885aade5fcffe8fdb104945219bf21a829bc4f0196de

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
SignatureEBH9DL9defQ6MD9ZPZzKdB1wJ8z7CsjxJyMz6TzKDl8ZHuCH0VbXiRsn+AHG3C+Kszd682MUIV9Wo5mFCxn7BQ==
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

2026-09-17T11:42:54.091782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027447
observed f98ccdcb47d99fb0547a38371ff44305...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:54.075103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027447/manifest.json
observed 48c80d52cee50f4263db885aade5fcff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:54.058455ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027447/publication.md
observed 9367883dcddd21d245f01cc69c2870ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:54.041468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027447/publication.txt
observed 01ac782ee63f88a559e14d1068c1c4e8...
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.