OpenTechnical

OT-2026-000101990

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pulsed 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-2026-000101990) never changes.

Identity and time

Publication numberOT-2026-000101990 · never reused
Internal UUID01a0aea4-50f1-7867-8d6e-3225b11de1d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000101990
StatusPUBLIC

Content hashes

Canonical text8d8bcdfc8ac06514f3514cf59d7e1ca82f719484c2595c0d0b79227f8c5dc5db
Markdown71fd77f059342123980fd4e57c25e4b17632e07be7567d827e0558e7df90e86d
PDF
Publication page6018a93d6466954435faa7bf6555b0183581df00bc433e5bcfe9dedfbb51df7a
Manifestb367dd0294e3d463106a5f1850b54c6fadd12dca1316360b0ecba6788231045f

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
SignaturefXB+/fZIm5l3oM39501lbOOYJOhk2qdkF1ttg7Jw4OZgJ8AuM57X4b9UNkoCz6wYbQi0ft6kK90BXSkPPkZtDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:25:06.893432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101990
observed 6018a93d6466954435faa7bf6555b018...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:06.875246ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101990/manifest.json
observed b367dd0294e3d463106a5f1850b54c6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:06.831413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101990/publication.md
observed 71fd77f059342123980fd4e57c25e4b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:06.786976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000101990/publication.txt
observed 8d8bcdfc8ac06514f3514cf59d7e1ca8...
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.