OpenTechnical

OT-2026-000099716

Publication integrity record

Two bellows cup 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-2026-000099716) never changes.

Identity and time

Publication numberOT-2026-000099716 · never reused
Internal UUID01a0aea2-c977-7396-9a91-e7aeba5acb03 · 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-2026-000099716
StatusPUBLIC

Content hashes

Canonical textc3d96be36c586bac66c86eafc3eb99eec23dfdc412b5dd2d53200270d5df831d
Markdownb07b91981e1ffcb7c005da2c3313c459c70d8fd9f7f0c4d247436133702d4c30
PDF
Publication page987c3eedef9f74a29fdd8a61dab068561192c4684a590ee69f6986604a58c978
Manifest3bb77dfab01c89d73113d8aef1085ac686d7add827af7574dd6a588214239c22

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
SignaturejRcsBmckvMZr4nTf5p1lEOKPOIJg9vpaCBIJfN1jpGY6PJe/Z42Aume0hrW5QD83eca2j5lcl4pwnf0DaTHDDQ==
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

2026-09-17T09:29:44.029233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099716
observed 987c3eedef9f74a29fdd8a61dab06856...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.010264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099716/manifest.json
observed 3bb77dfab01c89d73113d8aef1085ac6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:43.989960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099716/publication.md
observed b07b91981e1ffcb7c005da2c3313c459...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:43.971131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099716/publication.txt
observed c3d96be36c586bac66c86eafc3eb99ee...
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.