OpenTechnical

OT-2026-000026821

Publication integrity record

Single cup vacuum gripper, single stage ejector, 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-2026-000026821) never changes.

Identity and time

Publication numberOT-2026-000026821 · never reused
Internal UUID01a0ae72-3451-74e7-8fa1-d4c35d60753d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026821
StatusPUBLIC

Content hashes

Canonical text80020c5f004325130637434424eec2988a4db5303513ee13531065a1e6d2c511
Markdown4cc8399e9ad03623e983d12963f8e615638cc0afdc4274bff62b5fe4bd0d9711
PDF
Publication page98d49a59d1ff1ef313046b3e0f40010376c0adbd5df7964b6c7d717c719b7967
Manifest18632461b8ab6c3494ff7893d1a54c10e7ab90665965c2a74abd1348f478fe5e

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
Signaturen930wm8eG2Ch+hbSt6OkCGyB+h1EXlXQVmwzY0jqqBVvYQ9Z7dockSoe8oaKQOsvjuhYhkgfmJcGT8BpGJ7iCg==
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

2026-09-17T11:43:24.195666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026821
observed 98d49a59d1ff1ef313046b3e0f400103...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:24.178373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026821/manifest.json
observed 18632461b8ab6c3494ff7893d1a54c10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:24.162516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026821/publication.md
observed 4cc8399e9ad03623e983d12963f8e615...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:24.144407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026821/publication.txt
observed 80020c5f004325130637434424eec298...
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.