OpenTechnical

OT-2026-000017229

Publication integrity record

Single cup vacuum gripper, 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-2026-000017229) never changes.

Identity and time

Publication numberOT-2026-000017229 · never reused
Internal UUID01a0ae6e-76c8-7a9e-8fe8-c24828c6a6d2 · 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-2026-000017229
StatusPUBLIC

Content hashes

Canonical textf3a577de2f67525a1925cc2c3897f688f0c102d18e88516d398b1aa0eb50b402
Markdown069d7b81c66876214e355a8ef86f96dda10b6b64b6141be9b26775a0cd1402f3
PDF
Publication pagec2c619b87ec09d8de2c76c232ec68c0a41660c364a388db68c60463cb9d4689b
Manifest51802fff66d791c35038190bdf9914970d3876c39bfe274a18ed8a7caa5a3f02

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
Signaturerr4G0QaadKLJ6/EKstlpxmFoEBU9NVIISudiprJU+kaNcc+zgNKsXpYB9f8Y5KKwlnXOGZd7HNcm10aNbzFZCQ==
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

2026-09-17T12:02:18.577929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017229
observed c2c619b87ec09d8de2c76c232ec68c0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:18.562548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017229/manifest.json
observed 51802fff66d791c35038190bdf991497...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:18.546553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017229/publication.md
observed 069d7b81c66876214e355a8ef86f96dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:18.531387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017229/publication.txt
observed f3a577de2f67525a1925cc2c3897f688...
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.