OpenTechnical

OT-2026-000074513

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed 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-2026-000074513) never changes.

Identity and time

Publication numberOT-2026-000074513 · never reused
Internal UUID01a0ae93-717b-7e96-a1b6-50f982e43677 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074513
StatusPUBLIC

Content hashes

Canonical text9af85dc13f5fef9ac3aae3d73bcfa983da25ad566247c6006214e89086dd8b19
Markdown26f9c44bce420cc333f63cb1fdadad0941cd55f4d11a4d88212b4169490f29dc
PDF
Publication page9c42c4662a73f332973b8fad898f97d2877c0503466339ba10bc715946937974
Manifest91e7ecea1fdc509fb48d15b8a2e16d184098698647d20cb04d12037bd8da5a6a

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
Signaturea3G4MMbUw98R+IusXm5lsKJUxiAIQRfUEh6OmOqV4NuiP3eJoowF2hE/0eNMvIhMWKYnyh+WTzhr5xj2EczrBg==
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

2026-09-17T10:19:29.316493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074513
observed 9c42c4662a73f332973b8fad898f97d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:29.297398ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074513/manifest.json
observed 91e7ecea1fdc509fb48d15b8a2e16d18...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:29.276740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074513/publication.md
observed 26f9c44bce420cc333f63cb1fdadad09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:29.256644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074513/publication.txt
observed 9af85dc13f5fef9ac3aae3d73bcfa983...
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.