OpenTechnical

OT-2026-000021803

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, two stage ejector, pulsed blow-off before set-down

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-2026-000021803) never changes.

Identity and time

Publication numberOT-2026-000021803 · never reused
Internal UUID01a0ae6f-bb5a-7f7e-82b8-90ad79f61ead · 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-2026-000021803
StatusPUBLIC

Content hashes

Canonical text3883c6d651f9fa82da917c3e8f66b9ff7b5c3beb85def039ab3120a22d944ba0
Markdown1c373493856944a0b3dfdceddd3581ab951c1748b0c213ede2c90ef04e97e85d
PDF
Publication page8d8de9e848ff16da3584f09d48a23038f6540adfac7cb39af5a469e6e1cd80f7
Manifestfe69f915d1906f73e89134493b8d74dc39124bb9dbf677d4d06d10ca392b505d

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
Signature7fzplZwVDv3aiacEn9nzt+FgWTmBxioq2c2nIl0AmC4SAkoWGvjbgmhw9b1+Sa2wbTtkbWlSBRay3HBfZaKOBw==
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

2026-09-17T11:54:21.369291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021803
observed 8d8de9e848ff16da3584f09d48a23038...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:21.351061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021803/manifest.json
observed fe69f915d1906f73e89134493b8d74dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:21.332075ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021803/publication.md
observed 1c373493856944a0b3dfdceddd3581ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:21.313515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021803/publication.txt
observed 3883c6d651f9fa82da917c3e8f66b9ff...
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.