OpenTechnical

OT-2026-000042901

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000042901) never changes.

Identity and time

Publication numberOT-2026-000042901 · never reused
Internal UUID01a0ae7a-c0d1-76d5-ad6b-7838411e95bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042901
StatusPUBLIC

Content hashes

Canonical text0add8e50ba911c262c9565035b6e8c9d45df0d1c7ea3bb51131a04f0c79ab1cf
Markdownb9cab267df5ad6d930b51bb7ee5d7cb280f94bc357a3caa8bf43d738fa73697e
PDF
Publication page1a0d8bef96d71cb19d55fe1ee498ff1be690ca96863050ab313ea1ae3bb80408
Manifesteeb14ba55670e7c2e4d485d46ad24fcdb19f53fdfda769542f5cfb787be6d7bd

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
SignaturegJHdgNiMuIjQfOYPAFZcnnaNOhT0brsln4K/DuxqiJGwqglImXrgdT27bsYIb5iJMKmAORudRTj2758/Z3D9Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:15:24.569296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042901
observed 1a0d8bef96d71cb19d55fe1ee498ff1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:24.551502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042901/manifest.json
observed eeb14ba55670e7c2e4d485d46ad24fcd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:24.533428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042901/publication.md
observed b9cab267df5ad6d930b51bb7ee5d7cb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:24.515395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042901/publication.txt
observed 0add8e50ba911c262c9565035b6e8c9d...
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.