OpenTechnical

OT-2026-000073474

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000073474) never changes.

Identity and time

Publication numberOT-2026-000073474 · never reused
Internal UUID01a0ae92-efb8-7029-9c44-a94addac7502 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073474
StatusPUBLIC

Content hashes

Canonical texta559fd4a7fdfdb3ef5070b679b33f5b2dd917c5b0e7a1568df9063c9b6c83421
Markdown41409b1dd2bead02684f3d6f4c5897b9a990fc8431b189558d50c51018ee718b
PDF
Publication pagef77d15c05bf8554b070633710698f71897fe1969b077236d3081e8ff5d19fc58
Manifest39bd2917dd37744aca695d9cef3a7dba4a1cf269fab052390d0138707f9ed2b4

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
SignatureQKqStubAeY9wwtVxVlrWLiUk/T78x1PIFQkj12aLzksIy07w7BkfSqKxncD4GqOwsV0R1c0Vj21l99pcchXZDA==
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

2026-09-17T10:21:01.513190ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073474
observed f77d15c05bf8554b070633710698f718...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:01.494887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073474/manifest.json
observed 39bd2917dd37744aca695d9cef3a7dba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:01.476144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073474/publication.md
observed 41409b1dd2bead02684f3d6f4c5897b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:01.445646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073474/publication.txt
observed a559fd4a7fdfdb3ef5070b679b33f5b2...
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.