OpenTechnical

OT-2026-000071612

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, vented before set-down

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-2026-000071612) never changes.

Identity and time

Publication numberOT-2026-000071612 · never reused
Internal UUID01a0ae92-1e90-7821-8865-396acfaffd3f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071612
StatusPUBLIC

Content hashes

Canonical textb7b24d9abc169923cbccbe46f8b42ecf4544bd22b2cb7f0a4d7adc959084b13b
Markdown6a9ad55eb373fea0ac4d9770596d41c7741c1ce88c15de5a11b32d0b2223a1b0
PDF
Publication page52ae185431c2f4045e5da69dfb4ac48276a4548ea8ca7f574f19a78974b81526
Manifest0253e6da657a203fa87c76914864f9815ad016fdce3fb2b444bf2c621ef14486

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
SignaturezjoiV9h5A5Ta8im6fh/J3W3rm7CDvFgtgYIG+i6XVYaSKmeY2TqbDlDvLNtc0uHZvUTy8BkblmtpzrsfK1NbDA==
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

2026-09-17T10:23:37.972542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071612
observed 52ae185431c2f4045e5da69dfb4ac482...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:37.955082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071612/manifest.json
observed 0253e6da657a203fa87c76914864f981...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:37.937599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071612/publication.md
observed 6a9ad55eb373fea0ac4d9770596d41c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:37.844960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071612/publication.txt
observed b7b24d9abc169923cbccbe46f8b42ecf...
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.