OpenTechnical

OT-2026-000042032

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump 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-2026-000042032) never changes.

Identity and time

Publication numberOT-2026-000042032 · never reused
Internal UUID01a0ae7a-5d70-7bd9-b571-8b32c14fcc7c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042032
StatusPUBLIC

Content hashes

Canonical textbfce61fe16b925d54f6f9cd2a324bae8266cdb8276dc50f45d33d9f354c38ede
Markdown35a08edaf6d070baf1e36de61f8021786c500170279c841b0bec8592d860699e
PDF
Publication page5fa697bb83ab7779d484c6e3a61d3d08bef3a20efe4b03c924501df6445f8df3
Manifest1a8d7e842106f501d5cf9ff50caaa673e8ac737062e65f4ff6d18736fd901206

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
SignatureGzdwd+NmO3nk3teBokJ0agvQxhty1roaq980o85U/9Zworinu0T5qPVF6QsYSX0CP/tmW4mrj6NvvK2qLfsUCA==
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

2026-09-17T11:15:32.514697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042032
observed 5fa697bb83ab7779d484c6e3a61d3d08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:32.497388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042032/manifest.json
observed 1a8d7e842106f501d5cf9ff50caaa673...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:32.478956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042032/publication.md
observed 35a08edaf6d070baf1e36de61f802178...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:32.460117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042032/publication.txt
observed bfce61fe16b925d54f6f9cd2a324bae8...
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.