OpenTechnical

OT-2026-000023947

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, 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-2026-000023947) never changes.

Identity and time

Publication numberOT-2026-000023947 · never reused
Internal UUID01a0ae70-aed6-7f14-8b2a-d6f5134bb2be · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:55.528856Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023947
StatusPUBLIC

Content hashes

Canonical textccdab571d7beee5cef8ab0ef125d2c8a2cd3dfc833eac9b2700834b0b474895d
Markdown20a5c1e2b3afcbd6dfc45684fd52736cd034cd4d0f1c5945c83df8f2a462203f
PDF
Publication page220d402b936b90104a26e7f0f59e198848a73cb79ce3a0a571b4580fb34e52f2
Manifestbd59c19911fcd3566f1ca1d0487ee45e4d792eb349baff02c772523ebd9828aa

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
SignatureeRQtU9eB94J+QVqHcQm0Raqoff0i4e4VfeZDCcR+97TEUI5bBFOSLseVEOn2WMlT9N89V5ZyXVNsYJLIf77XCQ==
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

2026-09-17T11:50:41.196861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023947
observed 220d402b936b90104a26e7f0f59e1988...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:41.163375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023947/manifest.json
observed bd59c19911fcd3566f1ca1d0487ee45e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:41.140273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023947/publication.md
observed 20a5c1e2b3afcbd6dfc45684fd52736c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:41.116923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023947/publication.txt
observed ccdab571d7beee5cef8ab0ef125d2c8a...
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.