OpenTechnical

OT-2026-000083772

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000083772) never changes.

Identity and time

Publication numberOT-2026-000083772 · never reused
Internal UUID01a0ae98-0417-786c-9b89-ca59c3b1c040 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083772
StatusPUBLIC

Content hashes

Canonical text16ee907501d37f3c1efd284e3bd89295add2dc1dfd8c29f6ce00780d0b1843dc
Markdownd6c874ec9ddde74338fd97830a38f612f3bdc1022ecc1b0a8009ea84e88fa241
PDF
Publication page9260c8b77d5a9174123c5cbdaec592a0b96a3654de5a562471097d2b62d40f3d
Manifest4d8df9815f6cce02b34095d24e0b5eb0954b9791161ac97731a3dc51e0191722

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
SignatureYQibWkYpFWySXOs7iiw1AhUzQiiTMXYXhVxAXU69LlwBL4ZoqmwE6q5cImPSSXv63Ca7ANHxOcZ7KpH9BWfqAg==
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

2026-09-17T09:57:24.844530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083772
observed 9260c8b77d5a9174123c5cbdaec592a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:24.827100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083772/manifest.json
observed 4d8df9815f6cce02b34095d24e0b5eb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:24.811239ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083772/publication.md
observed d6c874ec9ddde74338fd97830a38f612...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:24.793955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083772/publication.txt
observed 16ee907501d37f3c1efd284e3bd89295...
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.