OpenTechnical

OT-2026-000029307

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, three stage ejector, 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-2026-000029307) never changes.

Identity and time

Publication numberOT-2026-000029307 · never reused
Internal UUID01a0ae73-2aa1-7515-8cf4-795a227394e8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029307
StatusPUBLIC

Content hashes

Canonical textead8e2af2393f6e5598db3124895b1227ad0797f286f2d9ffbd75768398a1a71
Markdownb1ff951fa43486c93cf65e8ebc6f6a028ae1246383ae1dc3d0ce0ffbbf8aaab2
PDF
Publication pagef659e104522974e5050d0115a36df85e2c47b4487564760f8c27081e0085fab7
Manifest8b522dce1bb493087942f35235bc6db3994b483cfe75df09b1620bc2140b1a0f

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
SignatureWGEVHJ7lTYrMK9y8RECTbTLy2VDVNWtH9ju5GSbuIJhmjZe4Jqkry8Nd7YRTbylfh6TdxOVWkiGEMGgwSgsxDA==
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

2026-09-17T11:39:56.809765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029307
observed f659e104522974e5050d0115a36df85e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:56.793100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029307/manifest.json
observed 8b522dce1bb493087942f35235bc6db3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:56.775217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029307/publication.md
observed b1ff951fa43486c93cf65e8ebc6f6a02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:56.757754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029307/publication.txt
observed ead8e2af2393f6e5598db3124895b122...
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.