OpenTechnical

OT-2026-000026617

Publication integrity record

Three cup vacuum gripper, three 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-2026-000026617) never changes.

Identity and time

Publication numberOT-2026-000026617 · never reused
Internal UUID01a0ae71-f4aa-7d2d-83ad-d81715130977 · 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-2026-000026617
StatusPUBLIC

Content hashes

Canonical text44f90c52cf1555c9e6a64d0eb913cef0a2e5658d887c25827d1d6b0452ad62f5
Markdown79c003e2e43b8bdaf4dde959c71495317afce25d6d242a6305bbe57308e80398
PDF
Publication pagebe960043bc2c3704993f2d3c354123cbad13cf1e30fa55c8c68ddbf99970410a
Manifestd28552234b49b5266cb8071172df1ac5d067a77f314fc7f4df43bf15eac6d854

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
SignatureQafqaZkhhv7zvH7atBdOXKJzDmxPJ0Qcct1A7QKmxuHIsCxt4qtQ8ROqsywiTK9TIDUl1qtISCZgNv3PEah4Dg==
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

2026-09-17T11:45:41.337407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026617
observed be960043bc2c3704993f2d3c354123cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:41.306677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026617/manifest.json
observed d28552234b49b5266cb8071172df1ac5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:41.277823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026617/publication.md
observed 79c003e2e43b8bdaf4dde959c7149531...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:41.250914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026617/publication.txt
observed 44f90c52cf1555c9e6a64d0eb913cef0...
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.