OpenTechnical

OT-2026-000021735

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pulsed 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-2026-000021735) never changes.

Identity and time

Publication numberOT-2026-000021735 · never reused
Internal UUID01a0ae6f-bb5a-7ffe-ad6c-26408714e328 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021735
StatusPUBLIC

Content hashes

Canonical text14dc0593a47ab4d589752b54a74b17b472584bc6553c1eaeba10db34f42bd59b
Markdownc0d38d0bba69ad88a6db039aa61a2a6916a9f00703dabca4aa670a30344615a5
PDF
Publication pagef57fb69da7798573f06da6ffe39a02b49b6902f87842aca5f25853a08215e873
Manifesta3a289c3029675df0255cc8854c6bbf4ffd4b6eb32a3c5441b12fee6c9b6d44b

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
SignatureAHEtw87is45mSu+Rd/lQQJUpjOBTcMJOlP8JpqLt8CRPWUIlTQtgY/viemDDmPC/W7Cf1SLpxhG3NW5fGAJsBQ==
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

2026-09-17T11:54:16.487031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021735
observed f57fb69da7798573f06da6ffe39a02b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:16.469259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021735/manifest.json
observed a3a289c3029675df0255cc8854c6bbf4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:16.452646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021735/publication.md
observed c0d38d0bba69ad88a6db039aa61a2a69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:16.434894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021735/publication.txt
observed 14dc0593a47ab4d589752b54a74b17b4...
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.