OpenTechnical

OT-2026-000087555

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three stage ejector, 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-2026-000087555) never changes.

Identity and time

Publication numberOT-2026-000087555 · never reused
Internal UUID01a0ae9a-cd52-706d-8b13-44728cb8055f · 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-2026-000087555
StatusPUBLIC

Content hashes

Canonical text0cead1949562d6105cf0edabbb9f64d681559170d488fba5ac5a5ee5f9bfbf75
Markdown20cab07e4395cf8de3270de3ca61dde3df98fa3945f361b4c0c642611b2c5340
PDF
Publication page3bdeaa7f56592266b535bb586e8165e3e5a5fcb7ec407c17a92921197f7d8910
Manifestca5b8145d8430394f20a76e24e236d0d0ef5dd20918677677a6a8ff6141d7b1c

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
SignatureGgREDpHD/voRBUArdXX24lADDELlY5bDJyAp03GHIv9hYMs++h/Zb2h+1dUEm9hUqNW1GB3ytffWuEykPaJqBA==
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

2026-09-17T09:50:53.895569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087555
observed 3bdeaa7f56592266b535bb586e8165e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.877677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087555/manifest.json
observed ca5b8145d8430394f20a76e24e236d0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.860429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087555/publication.md
observed 20cab07e4395cf8de3270de3ca61dde3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.843957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087555/publication.txt
observed 0cead1949562d6105cf0edabbb9f64d6...
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.