OpenTechnical

OT-2026-000026749

Publication integrity record

Four cup vacuum gripper, four 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-2026-000026749) never changes.

Identity and time

Publication numberOT-2026-000026749 · never reused
Internal UUID01a0ae72-3451-7a2f-9576-714301ef90aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026749
StatusPUBLIC

Content hashes

Canonical text8dff649dd78ac625d4086539fc1c244570bd34bed9c3cb290450c15bd5f52855
Markdowna8b846bfbe07bfa1ed59237271c69c350ee421e50d383ee3f8025c0788ffa977
PDF
Publication page43388351f518afa0b6daa5a502f0030519fa412686bde8dba51c3432114d3468
Manifest4ed0a52066485dcb50824108b2b5f9eef49d899e066c86794bb69f658d3c5b92

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
Signaturen7tO9LYWk1ZvkY75IJ575GXTgBcAMJ2UxpjA57K0t9VgOuD7ATPaHG6WEkanG4ToSGMnGv3oesFAimWwpJqjCA==
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

2026-09-17T11:43:18.964557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026749
observed 43388351f518afa0b6daa5a502f00305...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:18.946942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026749/manifest.json
observed 4ed0a52066485dcb50824108b2b5f9ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:18.930279ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026749/publication.md
observed a8b846bfbe07bfa1ed59237271c69c35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:18.912959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026749/publication.txt
observed 8dff649dd78ac625d4086539fc1c2445...
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.