OpenTechnical

OT-2026-000028968

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, single stage ejector, 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-2026-000028968) never changes.

Identity and time

Publication numberOT-2026-000028968 · never reused
Internal UUID01a0ae73-2a9e-7228-9d2a-319038778f72 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028968
StatusPUBLIC

Content hashes

Canonical textdec13bb8a3de1915679d36f13ca56542f6b789eca8c81962fb6ad8a0ef4a1215
Markdown8f04dc75c7f1ae731dd71c1764cb72eac64e39719c4f1f0aeb6a0cac6fee7a3c
PDF
Publication page520ac7298dc0006605d77752339d9905267f2f1c04b54ac0fc319c6ebfe3c950
Manifest2750e3953ac70bd7652aee24061ca046a92708748138f39e5e2d52265176599a

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
SignatureVM3KUd/EUPuM/5sXlgMNq+wQgWXhrJFITUSQtUyRdg58LzPQDC9+L5vfFJQQf0Scm3yeimcnR/LkFfAQttAPCw==
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

2026-09-17T08:20:28.504945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028968
observed 520ac7298dc0006605d77752339d9905...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:28.486406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028968/manifest.json
observed 2750e3953ac70bd7652aee24061ca046...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:28.467229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028968/publication.md
observed 8f04dc75c7f1ae731dd71c1764cb72ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:28.449368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028968/publication.txt
observed dec13bb8a3de1915679d36f13ca56542...
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.