OpenTechnical

OT-2026-000081554

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line 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-2026-000081554) never changes.

Identity and time

Publication numberOT-2026-000081554 · never reused
Internal UUID01a0ae97-0f71-77d2-9074-862bfaf93cf3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081554
StatusPUBLIC

Content hashes

Canonical text2ff777aecea2747e88de70a01721014c1024ef25b8a8c4d3873a3450d23b01fa
Markdowna9d810a1992ea14c5282f8cda54fff5fce0290560e2fbf8f90ba63b067865256
PDF
Publication page59d7743e3d323e4eac766f4b0887426c67d0bcc539d80297591782e2b40402e8
Manifeste3d23b6fc80bdda970268abeafbb785840a5302fd1989d0e96b912f27e1741c7

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
SignatureDCCRAmhqKkCSxho/Y1cGeXh8gSPD9EVej55QFMbFJSwbXNgZs5iZ3N7dXS3AhlKfYRbOhWUg+3JpVgVE0w2NBA==
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

2026-09-17T09:59:34.850761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081554
observed 59d7743e3d323e4eac766f4b0887426c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.833691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081554/manifest.json
observed e3d23b6fc80bdda970268abeafbb7858...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.815919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081554/publication.md
observed a9d810a1992ea14c5282f8cda54fff5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.798232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081554/publication.txt
observed 2ff777aecea2747e88de70a01721014c...
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.