OpenTechnical

OT-2026-000067975

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off after 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-2026-000067975) never changes.

Identity and time

Publication numberOT-2026-000067975 · never reused
Internal UUID01a0ae8f-c4fd-785c-bdaf-12ef2e934f9d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067975
StatusPUBLIC

Content hashes

Canonical text659b29ad459e566fe94ef92e205f548b7285b84076e7bd95d0a9b3c9ef998c60
Markdown19ce7d42eba439b30e3172c435f3ea8baa63e3e0ae1c249f57469e6bc87df8dd
PDF
Publication pagea7da5bba908362ac5ce92a485e0fa70674f68d0eb37866a7e6f36240cb089a07
Manifest81919c149c2390042e2d3197918c217fdd1253fb2ec68c23557ca4a2f68b9207

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
SignatureDiEDn+tT2vBOwzJeio0uGnydzcbADEm8kGr/dag9CgDP15dk6lUHhyhI5MQ1Je6yqyTx/X4I0WAvQog7R4c2CQ==
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

2026-09-17T10:30:31.243147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067975
observed a7da5bba908362ac5ce92a485e0fa706...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.226647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067975/manifest.json
observed 81919c149c2390042e2d3197918c217f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.207997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067975/publication.md
observed 19ce7d42eba439b30e3172c435f3ea8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.190415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067975/publication.txt
observed 659b29ad459e566fe94ef92e205f548b...
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.