OpenTechnical

OT-2026-000043821

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained blow-off 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-2026-000043821) never changes.

Identity and time

Publication numberOT-2026-000043821 · never reused
Internal UUID01a0ae7b-d677-7086-89eb-6fe505bb4003 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043821
StatusPUBLIC

Content hashes

Canonical text6cf5fed796edaae9374853c0b7cb68692085473ab38ea1996b7cc18ed0fda293
Markdown6c01ceea61f50f175327f038fa9dfae786a76c92630080d1f5a7b2acdf695b09
PDF
Publication page377b5aaa8351d1b74d508f4d04e7dc924adbce6dca76f03fd0cad9082faad6b2
Manifest767cd8b5a16bb59ca03eef9b6b01b8a7d2707eebcc9e91c9cff456248fd608d3

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
SignatureXaKyP8rkiE4Ik2j2R1kc8SfTowmsCPQNw5ebIARB17Bi+XntCdKp0Djlb5clPMGgk7lW63Wc9UmKhaOKrNVWDQ==
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

2026-09-17T11:12:07.838529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043821
observed 377b5aaa8351d1b74d508f4d04e7dc92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:07.821396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043821/manifest.json
observed 767cd8b5a16bb59ca03eef9b6b01b8a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:07.801836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043821/publication.md
observed 6c01ceea61f50f175327f038fa9dfae7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:07.782041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043821/publication.txt
observed 6cf5fed796edaae9374853c0b7cb6869...
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.