OpenTechnical

OT-2026-000031865

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000031865) never changes.

Identity and time

Publication numberOT-2026-000031865 · never reused
Internal UUID01a0ae74-bad1-7ad2-bfa7-984e5b12c0e3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031865
StatusPUBLIC

Content hashes

Canonical text533b171a1ad0c98105d3fb460cb3bc6f94ed32b5d4c781224d68c9694824c8d5
Markdown9894cee31e53af3bf9354a22cd3cde29dd1dfbd73dd349952723b4719ee463b9
PDF
Publication page8d9b3d87638dcf87fd80294fec56949a849b232c36044ba4ed732cda2784d770
Manifest33cb21063b08d3d9d385444d3cd0a314e61c7ed4fbc1b0a8f52eb74846f241e3

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
SignatureghNS1iV9+bYM1TzAJKJZTK5gMEA0Y/lmjTu8TgCV/BhxyiN5N+b2csNTRAymDaQEUeFLI7j/QDQ+zh1OU6xAAg==
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

2026-09-17T11:35:07.486563ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031865
observed 8d9b3d87638dcf87fd80294fec56949a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:07.466272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031865/manifest.json
observed 33cb21063b08d3d9d385444d3cd0a314...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:07.427060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031865/publication.md
observed 9894cee31e53af3bf9354a22cd3cde29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:07.325364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031865/publication.txt
observed 533b171a1ad0c98105d3fb460cb3bc6f...
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.