OpenTechnical

OT-2026-000071241

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, single stage ejector, supply line pressure sensor, 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-2026-000071241) never changes.

Identity and time

Publication numberOT-2026-000071241 · never reused
Internal UUID01a0ae91-e0ec-7a12-a5e5-086fe1b596b8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071241
StatusPUBLIC

Content hashes

Canonical textd892b6ed4b29d283a2ea6af44e99e3f5ce34d3987b15bee00180c1434c5de074
Markdowneef15e63313efe548265bbbb75181efc30f2fe1d2bbfa63b3cb50c2da3e377e5
PDF
Publication paged92b74f92dd5d5c0bf5ef52768dfc116befcf57957b3ac0ca34928e467b0d69a
Manifest7433f562de8403b8326579916235118561d6d08d19b6ba840efade718b49d2f6

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
SignatureNT03otrCbiCxKtaFz8Evr+r4frnHffQY89GgT0kxiBsJ3VVNnmf5+kwSeMrCUVSWmhkjY+vi/opgRK0xkSsyBw==
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

2026-09-17T10:24:47.423813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071241
observed d92b74f92dd5d5c0bf5ef52768dfc116...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:47.406826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071241/manifest.json
observed 7433f562de8403b83265799162351185...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:47.388722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071241/publication.md
observed eef15e63313efe548265bbbb75181efc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:47.371296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071241/publication.txt
observed d892b6ed4b29d283a2ea6af44e99e3f5...
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.