OpenTechnical

OT-2026-000025301

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000025301) never changes.

Identity and time

Publication numberOT-2026-000025301 · never reused
Internal UUID01a0ae71-5fa6-719b-ad1b-485e774d3dc6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025301
StatusPUBLIC

Content hashes

Canonical text72a273dda9f4678aee67867c0d9f79732d468f165b9dbdcc11274f6294b7468f
Markdown17ba95a0ea06a9415677c90da13ead8c8a8f840768330975d1cf7cc664c8f34e
PDF
Publication pagea5832b72be1a6f3444ec17e585817d5063995d5a8e8b468a77c7866b1f06a8e0
Manifestdf10692a291bb8022dd5c7c81f29bce7bc6561b5f6bff9411591b27fa8e630c7

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
SignatureW2C1kghgXZkXLc7om5ge0soUfVRkVDDLZKOzuA5gR2ByJjIA9umR4YIFx7ywbS6HqZv4rRf/fpi8QXrJ5WoFDw==
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

2026-09-17T11:47:19.184084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025301
observed a5832b72be1a6f3444ec17e585817d50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:19.163185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025301/manifest.json
observed df10692a291bb8022dd5c7c81f29bce7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:19.141013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025301/publication.md
observed 17ba95a0ea06a9415677c90da13ead8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:19.120856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025301/publication.txt
observed 72a273dda9f4678aee67867c0d9f7973...
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.