OpenTechnical

OT-2026-000089310

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, manifold 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-2026-000089310) never changes.

Identity and time

Publication numberOT-2026-000089310 · never reused
Internal UUID01a0ae9b-db01-7fff-baeb-f2af4786c9e8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089310
StatusPUBLIC

Content hashes

Canonical textb258e1866d6217181e82e554dbea3a6511741cc2a6e7933088f40adee8656bac
Markdown07993b05d1b801a45bf8540a6bd0c36ebb014fa172d68e870ab94873df545bd2
PDF
Publication page76a77ced15bf5f99a5ff2314bea946de33a05e1fc74ad1c0d99ecb741948bc2e
Manifest8a1da87f8ade479bacd8a6e30b5a8f2abf7cf13d80850623c09311f9eda2912c

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
SignatureF2eop/sFWX+/vP5Cla5f9mbuUB659xMEmSGO/dCIgMVcE1nsi40IwF9LHple5geRZtEU/tFma7WUpxMsqGRpDg==
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

2026-09-17T09:47:19.057882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089310
observed 76a77ced15bf5f99a5ff2314bea946de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:19.040006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089310/manifest.json
observed 8a1da87f8ade479bacd8a6e30b5a8f2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:19.021182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089310/publication.md
observed 07993b05d1b801a45bf8540a6bd0c36e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:19.003205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089310/publication.txt
observed b258e1866d6217181e82e554dbea3a65...
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.