OpenTechnical

OT-2026-000077504

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum fed, vented 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-2026-000077504) never changes.

Identity and time

Publication numberOT-2026-000077504 · never reused
Internal UUID01a0ae94-f50a-7235-b5e3-4b13ca171519 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077504
StatusPUBLIC

Content hashes

Canonical text27c9cce9b154c92d56390ac1f56193e295fc16060630ab418f9f11e8d2c2a919
Markdown1e7eb32e01e5bd30af6cf90d0b452f32f752b0e731312922ef95c1fb79c1456e
PDF
Publication pagea17e40bc3c87078d01703962a32f6f61dad489d76972573d76165b859dec4243
Manifest4580a6c61eb473abc0e9c768c66607eb122938dcf7ac45438534e827af0240de

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
Signature+QfKbfcxiqrph3aEEhwAyCjczGUVIbYxaJahY7CXaTYtdtfgrNpwafqIKKgdR0tPcyO3yznvuLZWaY0ZuT2yDg==
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

2026-09-17T10:09:11.697036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077504
observed a17e40bc3c87078d01703962a32f6f61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.677291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077504/manifest.json
observed 4580a6c61eb473abc0e9c768c66607eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.657717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077504/publication.md
observed 1e7eb32e01e5bd30af6cf90d0b452f32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.639091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077504/publication.txt
observed 27c9cce9b154c92d56390ac1f56193e2...
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.