OpenTechnical

OT-2026-000048355

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000048355) never changes.

Identity and time

Publication numberOT-2026-000048355 · never reused
Internal UUID01a0ae80-4de4-7ea6-8b57-ebd6644556f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048355
StatusPUBLIC

Content hashes

Canonical text20097ae29f5e15396a51d1f4199c6314d2f1c30cb679ed9750f0c21268887652
Markdown1cfdfe4372bcf497c4b51274b0ef9a73f930241930a7d75ce82596576252e8a3
PDF
Publication page3506a97fdd55a3117d91491870ec30ff9995602876bd0dfc74a856a3fd638032
Manifestd78cb4d2ac93ccd0d43305d9c4a3fcd0839272b44f1114c6051d68a06fb24923

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
Signaturets/tu0bmETUu3PHSbGciQNWAiCqRN05ckqcW/cIL+Uw19sQK6V3EtoI33zrUrtB3vkzBKtFJ90hUoBZbHwjOCQ==
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

2026-09-17T11:04:58.395797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048355
observed 3506a97fdd55a3117d91491870ec30ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:58.375790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048355/manifest.json
observed d78cb4d2ac93ccd0d43305d9c4a3fcd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:58.357706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048355/publication.md
observed 1cfdfe4372bcf497c4b51274b0ef9a73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:58.339327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048355/publication.txt
observed 20097ae29f5e15396a51d1f4199c6314...
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.