OpenTechnical

OT-2026-000087641

Publication integrity record

Three bellows cup vacuum gripper, three zone face, plant vacuum fed, supply line pressure sensor, sustained blow-off before set-down

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-2026-000087641) never changes.

Identity and time

Publication numberOT-2026-000087641 · never reused
Internal UUID01a0ae9a-cd53-76c2-9035-56e586b22a79 · 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-2026-000087641
StatusPUBLIC

Content hashes

Canonical text4b78c519532dab9c1b3c9f6601212c5a370c8e47ad0267586149fa7aee61dc43
Markdown6517ebe57dbd5ffc93f208c8dea92fb54a6d5c3062d2edd11c996222c807640a
PDF
Publication pagef7ac139cc9d1dc8761363bd4b3725f4c570fde1e6e7e55287ab9f9edae1fc082
Manifest6305f8d7eb676924b1ab85046716cf9590f634f71d716d1abf4a732f66814add

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
SignaturencJ+rKVm46MwU3rNVsm+C5Z3nYUVUOHjiIngUOBBUmQl9f+qrtn51OXCbWu4qFNsc+9L1UuEKPMl9cbHYwU2Dw==
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

2026-09-17T09:51:05.206003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087641
observed f7ac139cc9d1dc8761363bd4b3725f4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:05.189250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087641/manifest.json
observed 6305f8d7eb676924b1ab85046716cf95...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:05.173201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087641/publication.md
observed 6517ebe57dbd5ffc93f208c8dea92fb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:05.156250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087641/publication.txt
observed 4b78c519532dab9c1b3c9f6601212c5a...
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.