OpenTechnical

OT-2026-000006416

Publication integrity record

Vacuum cup gripper, common isolation valve, pump fed, pulsed 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-2026-000006416) never changes.

Identity and time

Publication numberOT-2026-000006416 · never reused
Internal UUID01a0a95a-7a4c-73b3-86ea-f702b9dff68c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:34:34.190656Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006416
StatusPUBLIC

Content hashes

Canonical text98e7dfc141a0805099ab94f266e8076d3474600a3d4e2898ec5f724a39529b04
Markdownd5b869a4f7dcb5aefdaf5f6683e502705388162494078ea2ebe78cfb7ec5521b
PDF
Publication pagea4a45ef81a05398c8b58a37253a570100288097937f55df09872eeed4eaf8e26
Manifestd6874fb45c4d4b79d647b98a398efac94cd2c5e66858bd095c60051224819720

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
SignatureWTW5Q0R65cFYuXrimJq8ksWr66fyvboeVI9qAhkXFl72Bbd/gHqWBK6+0NQr97egPUfI57mZvx97LWERTf8jCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:20.155548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006416
observed a4a45ef81a05398c8b58a37253a57010...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:20.141024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006416/manifest.json
observed d6874fb45c4d4b79d647b98a398efac9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:20.126909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006416/publication.md
observed d5b869a4f7dcb5aefdaf5f6683e50270...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:19.988892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006416/publication.txt
observed 98e7dfc141a0805099ab94f266e8076d...
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.