OpenTechnical

OT-2026-000018257

Publication integrity record

Six cup vacuum gripper, six outlet manifold, 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-2026-000018257) never changes.

Identity and time

Publication numberOT-2026-000018257 · never reused
Internal UUID01a0ae6e-b488-7ab2-b5e2-b7b820b27652 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018257
StatusPUBLIC

Content hashes

Canonical textb4ec57e188720f27f5d516b2e89d69134640547fc346db58c6dfb9c8955e184a
Markdown05d6be485cd17a760f6e5b1a961ab309a0d50b8507db476c762e41a88d0dc732
PDF
Publication page5876557cd236da1e237aaeddd81204020eabfed1d9373f38257ecc3b2a233109
Manifest1d1c34a98862f236529bdbe5252f0a14b6c05c2e4aac9c8497fe454f05d2369c

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/Nef2Y3jZQaH3L0SRwsWgIXl8z5jrx3SZI/whaK3e4lJGPuD1O96cq+29bEtQybWKNSxsLrypMw31Xa+0VPtBA==
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

2026-09-17T12:00:05.268354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018257
observed 5876557cd236da1e237aaeddd8120402...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:05.242644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018257/manifest.json
observed 1d1c34a98862f236529bdbe5252f0a14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:05.201908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018257/publication.md
observed 05d6be485cd17a760f6e5b1a961ab309...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:05.169529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018257/publication.txt
observed b4ec57e188720f27f5d516b2e89d6913...
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.