OpenTechnical

OT-2026-000038540

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, sustained blow-off before 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-2026-000038540) never changes.

Identity and time

Publication numberOT-2026-000038540 · never reused
Internal UUID01a0ae78-2d53-73b8-a0c0-fbe2bcfcfece · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:25:06.661829Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000038540
StatusPUBLIC

Content hashes

Canonical text73e8d23a2060d41f13d6ea385f2179679cfdbf52abcdc1ec4063069ab955c57e
Markdowna421b853646aff0b3c1fb4fd65d829a783379b306d893348981511ea0a5565fa
PDF
Publication page89a5e6d424ef3d3decf43ab3ee2a172e91a8c62266245ac6c1954b2c9f11856f
Manifest6ca4591adf02fbe495ee2c60f902e77dc32a30a29b0956d03d8d8574bbccd447

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
SignaturesfjEnVH5FKKn5fYwM3ahIiBJfNjh9ekEvzkttE+9aesFpmEku1WMilgaV6D3Fdlih6ycWv/idf+SXyyXu6tADg==
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

2026-09-17T11:22:48.035297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038540
observed 89a5e6d424ef3d3decf43ab3ee2a172e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:48.017369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038540/manifest.json
observed 6ca4591adf02fbe495ee2c60f902e77d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:47.998861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038540/publication.md
observed a421b853646aff0b3c1fb4fd65d829a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:47.981409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038540/publication.txt
observed 73e8d23a2060d41f13d6ea385f217967...
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.