OpenTechnical

OT-2026-000087474

Publication integrity record

Two bellows cup vacuum gripper, two zone face, 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-2026-000087474) never changes.

Identity and time

Publication numberOT-2026-000087474 · never reused
Internal UUID01a0ae9a-cd51-7e48-988d-5ce7310e4bea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087474
StatusPUBLIC

Content hashes

Canonical textcf4c0f24395648ccb5eda52f6f13a3eca7451a5082ded24270961272504874b3
Markdowndcee4f47441fa10dd3c0d21f271f7345bf635d1e97c716ab04bb9aa27f11d88a
PDF
Publication page2755e009f2a31904b717c6ae9ac113595aea1c59a958e0b00a97193a3912b0f6
Manifest59e88967a535724c8066d901dc16516ed31da1eb82dc1bd888c9b7237dee652a

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
SignatureYOD/j4cFfIilq2A5Xdfn6gMM4CH2uSOtGUwxbKkBeOOv6i+j355pn1Mo5OD5ye5/+Myc2gu4fMmH0xjw8YXVDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:50:48.270837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087474
observed 2755e009f2a31904b717c6ae9ac11359...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:48.253982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087474/manifest.json
observed 59e88967a535724c8066d901dc16516e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:48.237315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087474/publication.md
observed dcee4f47441fa10dd3c0d21f271f7345...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:48.221520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087474/publication.txt
observed cf4c0f24395648ccb5eda52f6f13a3ec...
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.