OpenTechnical

OT-2026-000087714

Publication integrity record

Four cup vacuum gripper, four zone face, pump fed, supply line pressure sensor, 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-2026-000087714) never changes.

Identity and time

Publication numberOT-2026-000087714 · never reused
Internal UUID01a0ae9a-cd55-7894-b12d-d9170a88f12e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087714
StatusPUBLIC

Content hashes

Canonical text57927ed9608d66f6ff3545e1041027eb039c5ae6dfc3a44e8b84f157e55e0ba9
Markdown502c3130ec9c768ba9067e1ec4a320edea9b03af3fa4807fa5bbb2332c8f1443
PDF
Publication page20496d8f4777711ec780f812a6948289aca44746a4bbe5ec7c11de10f7f8b86f
Manifestac8a3097c1a8f56a1557f53e593afa463ec573177fe054f1985f396eff5c07a7

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
Signature6Sz3Fb//qtM65mBw9IAivJuyLcz7nzDuhfUuUMV1er7vfNaY6jyRryloq0IMYqwKMBM+FhmsSGYEkYwxWeUuDA==
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

2026-09-17T09:51:09.983891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087714
observed 20496d8f4777711ec780f812a6948289...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.969204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087714/manifest.json
observed ac8a3097c1a8f56a1557f53e593afa46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.952630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087714/publication.md
observed 502c3130ec9c768ba9067e1ec4a320ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.936796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087714/publication.txt
observed 57927ed9608d66f6ff3545e1041027eb...
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.