OpenTechnical

OT-2026-000067019

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000067019) never changes.

Identity and time

Publication numberOT-2026-000067019 · never reused
Internal UUID01a0ae8f-14fe-7e50-9c88-6d51defd542f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:07.760615Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067019
StatusPUBLIC

Content hashes

Canonical text2443d4596f456d504e54340503bf3233b2ac44cfaddd073045a73c1bbbe248b3
Markdown38ab40b5cc47a717e4c8592631e4b3af166c4dc260df6a8e78eb4125d2da90fb
PDF
Publication page1767ef2967345dd5e48f286a9dab8537e0dcd7ab1af654855999613dba5c3299
Manifestf0c460f2da2c5d77b468f5b56472e28ed7905e4122bfd8cc6a8cc277dfb80fcf

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
SignatureukI6J4tbYfrVjbKjS3lRzGSM+Q9wT3i28FchvuB5KVjEISNJAi56opw+skBZNS6U/fG5HzvlZs6wrrSrPE2WCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:32:15.112468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067019
observed 1767ef2967345dd5e48f286a9dab8537...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:15.095317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067019/manifest.json
observed f0c460f2da2c5d77b468f5b56472e28e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:15.076995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067019/publication.md
observed 38ab40b5cc47a717e4c8592631e4b3af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:15.058336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067019/publication.txt
observed 2443d4596f456d504e54340503bf3233...
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.