OpenTechnical

OT-2026-000026509

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000026509) never changes.

Identity and time

Publication numberOT-2026-000026509 · never reused
Internal UUID01a0ae71-f4a8-73a3-9fd7-bfeda1a28e34 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026509
StatusPUBLIC

Content hashes

Canonical text1e6bc6a54be6feb4cf505816e2325e4010c438069230e0619ea781c275b81fe5
Markdownfd5c08b35eb46f1d53d40564510a71b95e3643d4d66931958f033e33ebd805e5
PDF
Publication pagefb4679985254f1962ab3a5558b555975390ce8ea78c7bac4c50761cb0d14a78e
Manifest33896d78138d36f9d4ea03625965964139c035888fdf2787eca30cc299f7a9f3

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
SignatureVHkMPHnbe2QMcmdNBvQOI0DZYjw8bTh7wcTRa7G4epx89/XXk+QR0tcxjizrWsnb1aDBrU09YhJD0ZPEghqcDQ==
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

2026-09-17T11:44:38.261912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026509
observed fb4679985254f1962ab3a5558b555975...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:38.244956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026509/manifest.json
observed 33896d78138d36f9d4ea036259659641...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:38.225722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026509/publication.md
observed fd5c08b35eb46f1d53d40564510a71b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:38.210222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026509/publication.txt
observed 1e6bc6a54be6feb4cf505816e2325e40...
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.