OpenTechnical

OT-2026-000042865

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000042865) never changes.

Identity and time

Publication numberOT-2026-000042865 · never reused
Internal UUID01a0ae7a-c0d1-7961-8279-338aa792219f · 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-2026-000042865
StatusPUBLIC

Content hashes

Canonical textcf670b7f9ceea0f2540895f169cee6c2c99e82b8aebc39e88c18ef177808458e
Markdown9881b36d635a2830cdf3791961f8ef61661b6cb49118413e0a7fb65f30a1947a
PDF
Publication pagea065d1971b73fd8ed7d472aeaa55f1a16190776f204e57cf1330053baa5230ca
Manifestfb8d055386167a7175558b19ab2dd63850a46b6b783a6851f84422c545319e1b

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
SignatureThvDgwmwbfIQmtWqzLpGOebjdlIvaN6aZ5vd/Ibaibe3fDWxyo3Dbtru0skE6AQMjgKCNxjs/wZCButtrLzvAg==
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

2026-09-17T11:15:21.598607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042865
observed a065d1971b73fd8ed7d472aeaa55f1a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:21.580784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042865/manifest.json
observed fb8d055386167a7175558b19ab2dd638...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:21.561343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042865/publication.md
observed 9881b36d635a2830cdf3791961f8ef61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:21.541921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042865/publication.txt
observed cf670b7f9ceea0f2540895f169cee6c2...
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.