OpenTechnical

OT-2026-000041705

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, sustained blow-off 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-2026-000041705) never changes.

Identity and time

Publication numberOT-2026-000041705 · never reused
Internal UUID01a0ae79-e8a1-7d59-ac09-eff44d26181b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041705
StatusPUBLIC

Content hashes

Canonical text01410b9216f23a62e05431b0b0287ecf0b34a29648d0b26353aab5ccc1857ae8
Markdown8bdb0ced71c8ccdbcea424a36f670b14cdd80cc9bbec72d91b7c3e723d292a59
PDF
Publication page72a3c2e63ba1eb22cbdf00588367b1398e8eb85e9f321710c6385169623fe69e
Manifest36ee3e89b0d36eb1d309fb54ee65b7f309590a61529db84e9bc46044df8030bd

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
Signature+oo1w+u8k9piMVzSijuwwliC3IF2T/y5LD7jO+cICLrrrw5ffVNwMDbfGK1izL9qjmDl+humqpZS7bCM31seAg==
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

2026-09-17T11:16:31.112537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041705
observed 72a3c2e63ba1eb22cbdf00588367b139...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:31.096511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041705/manifest.json
observed 36ee3e89b0d36eb1d309fb54ee65b7f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:31.080564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041705/publication.md
observed 8bdb0ced71c8ccdbcea424a36f670b14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:31.063696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041705/publication.txt
observed 01410b9216f23a62e05431b0b0287ecf...
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.