OpenTechnical

OT-2026-000099725

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000099725) never changes.

Identity and time

Publication numberOT-2026-000099725 · never reused
Internal UUID01a0aea2-c977-7223-9b60-6980c281d4f9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099725
StatusPUBLIC

Content hashes

Canonical texta166d4ea7554d936bea2f0d1aaf520859ddf96ade742c89fdb694cb5fb768254
Markdownf3e15fb11974c973c474d75a932edcf2ac4cef5d0b2e80ab4789b53c33725c2d
PDF
Publication page60cf32bcab3a55f5773cb0ec234a740a1bed8807b5ca8b5f6c148ccef5e66218
Manifeste2186f8c76177db66a921994ddec252e03115c7d33d582a45e5a2d1694964ddf

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
Signature1rAgblSZ0t897viHeodEO1g1/BjwzuEpT+8pdlYFRinp+6RGM5Uee7UhkJGejN5LzHVHr0B0kI8+SPT/MiRMDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:29:44.762824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099725
observed 60cf32bcab3a55f5773cb0ec234a740a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.747263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099725/manifest.json
observed e2186f8c76177db66a921994ddec252e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.731997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099725/publication.md
observed f3e15fb11974c973c474d75a932edcf2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.716143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099725/publication.txt
observed a166d4ea7554d936bea2f0d1aaf52085...
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.