OpenTechnical

OT-2026-000021823

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, two 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-2026-000021823) never changes.

Identity and time

Publication numberOT-2026-000021823 · never reused
Internal UUID01a0ae6f-bb5a-7eaa-9798-1d4614245a1f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021823
StatusPUBLIC

Content hashes

Canonical textf2de9ec73967ca4c7d524ad6773640161dccf7583ccdc0cc4045217b4c148df2
Markdown73b660c96f5e30f286c1dd14cb23fe90cd377f9bb8c6b27d4afadb7ed97917d6
PDF
Publication page88407e74121671a6fd5a323fccede81cc371a3c7e3a9aafecaa4396caf7bc8bf
Manifest264f9b1f2c3b4c2b96450352eb974e80c3771308db65c3e630c3fb4fe0d34d8d

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
Signature9VmTDxPH4AQxSAdsUQrk8XCa/QrjTrElEg4Hwi6Gvt+EJZfAl1Wt7cl5XCT1JCLmY55aLSv5+tPE656BYVnaDQ==
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

2026-09-17T11:54:22.732116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021823
observed 88407e74121671a6fd5a323fccede81c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:22.714675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021823/manifest.json
observed 264f9b1f2c3b4c2b96450352eb974e80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:22.696927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021823/publication.md
observed 73b660c96f5e30f286c1dd14cb23fe90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:22.679490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021823/publication.txt
observed f2de9ec73967ca4c7d524ad677364016...
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.