OpenTechnical

OT-2026-000075923

Publication integrity record

Three cup vacuum gripper, three zone face, three stage ejector, pressure sensor per zone, 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-2026-000075923) never changes.

Identity and time

Publication numberOT-2026-000075923 · never reused
Internal UUID01a0ae94-29ff-74bd-932e-93c24fcc8282 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075923
StatusPUBLIC

Content hashes

Canonical text8edb4a58332943104b4248d43c1744c516233afe0e47effbcf290613d8354f4f
Markdownc33ee5c9c8bbde5dace3e7441d6acc597036f9d3275fb96ddb515d8f9ef7c91b
PDF
Publication pagee260b35a1048bb5f5d09ac19e4ac1ac6390690f0bca2042a5b8388176cae8d89
Manifest8bf09dfb3df0a27ac074705f2494a76e13b388b2e17ad843301f9578b3407f0d

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
SignatureT61OHNgcZmfxPXF0x4XbXeg3hM4fLm/ejsFpae2DHXkFwTBK6V94jJ43ozQWtaTx71NFMwW0kzxLzvh9DxksAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:14:46.537957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075923
observed e260b35a1048bb5f5d09ac19e4ac1ac6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:46.464483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075923/manifest.json
observed 8bf09dfb3df0a27ac074705f2494a76e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:46.444600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075923/publication.md
observed c33ee5c9c8bbde5dace3e7441d6acc59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:46.285558ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075923/publication.txt
observed 8edb4a58332943104b4248d43c1744c5...
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.