OpenTechnical

OT-2026-000022355

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump 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-2026-000022355) never changes.

Identity and time

Publication numberOT-2026-000022355 · never reused
Internal UUID01a0ae6f-f4fd-74fb-97a5-6e4ec368246b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022355
StatusPUBLIC

Content hashes

Canonical text9b1604aff089e383f6f254de4f4a97ac9edbeb5e94e7292ddbc8d4536600d45c
Markdown1fd4e4c9767c7a5636a506238b445c9d9768c5c1f0a7d16cb2785c057a2e4225
PDF
Publication page27b44838fbac6f93b5b3494e9022d17f8c96ced42f6cda08052be8027bb33b4c
Manifestadc4c5730a0b3c2c1040776802fe95de73a6032b8de811fbdc41e697828b194f

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
Signaturelct7iMsHW+5npwnLzv3E2fpRUgKYPR+I5DL0Za3Nbhi9tvjLgQ/DmOEJr7zmYf8qhBbpKiLZW/CxqzICwf3uCQ==
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

2026-09-17T11:53:43.267691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022355
observed 27b44838fbac6f93b5b3494e9022d17f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:43.251243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022355/manifest.json
observed adc4c5730a0b3c2c1040776802fe95de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:43.233012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022355/publication.md
observed 1fd4e4c9767c7a5636a506238b445c9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:43.214715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022355/publication.txt
observed 9b1604aff089e383f6f254de4f4a97ac...
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.