OpenTechnical

OT-2026-000014643

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, 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-2026-000014643) never changes.

Identity and time

Publication numberOT-2026-000014643 · never reused
Internal UUID01a0ae6d-d093-7aa0-a2f5-c1903bc985fa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:47.560717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000014643
StatusPUBLIC

Content hashes

Canonical textca3655816c3dbb993c8128e7d8bf3d85a68ca5f76dca426b867d5704318eccac
Markdown6886c7bba7c5bc287fcdeea5b05f93fc8c5948cf0e96b5d9a81772a11278790e
PDF
Publication page6e0a03a417acd6dac7cef3e44273716cdd997dc939036e6b65d84632584867d1
Manifest829bef347f0ec9bb102ff1c18c314e90a13219fb9c9a1f3856c30070fb1c7835

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
SignaturecAgMky41rlWjhN/pPg8ftpme9fI59oM2D6HfAVvCmCbgNVRyvRzJ9iUmCdleeGlCc6QG5G5Zgz0YDKo1rZD8Ag==
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

2026-09-17T12:06:27.856185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014643
observed 6e0a03a417acd6dac7cef3e44273716c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:27.837727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014643/manifest.json
observed 829bef347f0ec9bb102ff1c18c314e90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:27.817751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014643/publication.md
observed 6886c7bba7c5bc287fcdeea5b05f93fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:27.799612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014643/publication.txt
observed ca3655816c3dbb993c8128e7d8bf3d85...
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.