OpenTechnical

OT-2026-000071315

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, supply line pressure sensor, pulsed 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-2026-000071315) never changes.

Identity and time

Publication numberOT-2026-000071315 · never reused
Internal UUID01a0ae91-e0ec-7d1c-8f46-83611fbb12f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071315
StatusPUBLIC

Content hashes

Canonical texta32de741c0f0934fc1e0f1781665813cea143f01a6d835a91eb996a683f760a1
Markdownc0807eaaf794ffb2f0e3da28e809ae38c1f00eac2cad012deec8d387f454e7ee
PDF
Publication page3b4b411bc912ba4b896fd78e424a8e26301e0da132736fab74c12bcaa78a874c
Manifest79e302deee4515d0f00b8314847af9b82cef4f00d0ab19c3931b167721f9f778

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
SignatureNEqlSFMYkQnUneooq1WjYkovcw08liAI9cwxD+zRQuRCASLP2J0my8tCcjCOrUOQRYpz/ugv5Gp5nqYDxZmqCw==
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

2026-09-17T10:24:54.199417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071315
observed 3b4b411bc912ba4b896fd78e424a8e26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:54.182143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071315/manifest.json
observed 79e302deee4515d0f00b8314847af9b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:54.165151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071315/publication.md
observed c0807eaaf794ffb2f0e3da28e809ae38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:54.146447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071315/publication.txt
observed a32de741c0f0934fc1e0f1781665813c...
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.