OpenTechnical

OT-2026-000031796

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000031796) never changes.

Identity and time

Publication numberOT-2026-000031796 · never reused
Internal UUID01a0ae74-bad1-71fc-9a4b-452360d6dadf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031796
StatusPUBLIC

Content hashes

Canonical text3b7ef75e6fb9906048732db877fd1e16e6ab881ec458c7f77b00930eaece01b6
Markdown240962cf7813d1af58701aed856f3c2cd8f2ce768f55d4ebe6ed86b0e347d9ee
PDF
Publication page97b5f7cd2934bd32aca3b15e042d5d3005c89cae88555b26b52de3262eb2f447
Manifestb15ba70eb3b774d3f46332715fd2edb38cfef5f7e9a6a800091a6a1f96079b6c

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
SignatureQNKHwdmB+1agWxG7W5OzfTncUkF4m5AONNEE/xmdt3vWb1MQjh9+1VYZ2ilZv5IEdfiAp1P811i+TbkJPymfCA==
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

2026-09-17T11:34:55.833092ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031796
observed 97b5f7cd2934bd32aca3b15e042d5d30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:55.804128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031796/manifest.json
observed b15ba70eb3b774d3f46332715fd2edb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:55.775784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031796/publication.md
observed 240962cf7813d1af58701aed856f3c2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:55.753516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031796/publication.txt
observed 3b7ef75e6fb9906048732db877fd1e16...
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.