OpenTechnical

OT-2026-000033177

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000033177) never changes.

Identity and time

Publication numberOT-2026-000033177 · never reused
Internal UUID01a0ae75-4844-781a-ad59-67cbb9ee8ab1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033177
StatusPUBLIC

Content hashes

Canonical textaba8edc1170d2057a8623b53a28e6fc38eafeb9beae985ed2fcf4b18e5992a47
Markdown8d71b989d1d73d21160d80df6d82f6b332067943f3fc1fa2571b5102acfbbe18
PDF
Publication paged30cbab35168284cf20eaf223337e04660f17fb9a462bc3e0819db92b6596bc2
Manifestb405989f00c766b196babf1a15973c5b0bc5fc0e2eb1811be238fcd43ae98b31

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
Signature81iVh9o6px82EcbKjiR/B9P6+CSB2EX3vCLfBZifoWkoFhBe98dcfeJc7244+51Yx9Jrr+L3SxjO2SZhwSePBA==
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

2026-09-17T11:32:52.230844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033177
observed d30cbab35168284cf20eaf223337e046...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:52.214402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033177/manifest.json
observed b405989f00c766b196babf1a15973c5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:52.198013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033177/publication.md
observed 8d71b989d1d73d21160d80df6d82f6b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:52.179780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033177/publication.txt
observed aba8edc1170d2057a8623b53a28e6fc3...
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.