OpenTechnical

OT-2026-000086156

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, sustained 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-2026-000086156) never changes.

Identity and time

Publication numberOT-2026-000086156 · never reused
Internal UUID01a0ae99-e82c-7c94-b2e1-5764e9e32785 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086156
StatusPUBLIC

Content hashes

Canonical text67c72d3b55dd25d8350f5b1ef70793496e3562caad8b09ce5f44a23a2c5c75c4
Markdown074f31e3b5ed8da15940f1c45e52ef10f5d5e2b7c94676da67d5e7f0a32f20b2
PDF
Publication page6ed4c2ac3e9ba1126cefd6f4cc641c551bdef8ed6ff8b4cfaa8d7b0f9a857280
Manifest47df0ef45739d3baa8def667ada291a597f098bd4e0f93fb7ef802317d530ba2

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
Signature4hPegB4Rapn4XTGeM/QlaOyTspEia+GV9FsYB+JvvYiq5LkMXnhoOXlE050S0SyWh7jvPp/kc6g/MhSodXWeBQ==
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

2026-09-17T09:53:49.558277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086156
observed 6ed4c2ac3e9ba1126cefd6f4cc641c55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:49.541927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086156/manifest.json
observed 47df0ef45739d3baa8def667ada291a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:49.526316ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086156/publication.md
observed 074f31e3b5ed8da15940f1c45e52ef10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:49.507744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086156/publication.txt
observed 67c72d3b55dd25d8350f5b1ef7079349...
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.