OpenTechnical

OT-2026-000019967

Publication integrity record

Four cup vacuum gripper, four zone face, single 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-2026-000019967) never changes.

Identity and time

Publication numberOT-2026-000019967 · never reused
Internal UUID01a0ae6f-1fb7-7b39-9c04-f9fbbc9c8fbe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019967
StatusPUBLIC

Content hashes

Canonical text7842e0214404be2380ee451246327f1b26808303c038aeb5f5e549c5b588eba9
Markdowndc2fe2e9bb2fa9213d6c67e5e73458a87b8c9a331f1075e906bd06ba5a04bc7f
PDF
Publication page1066aadd81e750dda756a4790c09252395d728eae9a7c3db101ffe099578c077
Manifest8ac81c82d05835d7c2ff9d89059103955da8e3a882aeeb2e3f2fdf2db3f2699d

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
SignatureT3azpQFY6HnNEQxC/j5YsNCKRdG7y0O8HksidA3q9z2KDKr4MJj2oNr7kw1nMYo0uoSB4jEoMaTTEl4nOJJtAQ==
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

2026-09-17T11:58:12.049460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019967
observed 1066aadd81e750dda756a4790c092523...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:12.028259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019967/manifest.json
observed 8ac81c82d05835d7c2ff9d8905910395...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:12.006028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019967/publication.md
observed dc2fe2e9bb2fa9213d6c67e5e73458a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:11.987096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019967/publication.txt
observed 7842e0214404be2380ee451246327f1b...
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.