OpenTechnical

OT-2026-000012121

Publication integrity record

Four cup vacuum gripper, four outlet manifold, 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-2026-000012121) never changes.

Identity and time

Publication numberOT-2026-000012121 · never reused
Internal UUID01a0ae6d-39f4-77f8-919e-e8bbb671f30a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012121
StatusPUBLIC

Content hashes

Canonical text2643f80d543c38aeed3044c653a0b3656db1480424d03d315c3847f3753b08e5
Markdown394c82b6eefbf466deb0dd117bbdaebc21b24278d0b73e6edc686d505ed8f80a
PDF
Publication page9fcd302f07b0e49eba28551a3cb2f8596e49b4aa535a660677a2234347aa0948
Manifest9492741492a723deeff6b376f206791da5296f50ab4ebb24d3e14fe04cf2c4ac

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
Signature5w5yzUUvSfCnsvWc31EsZ1TsGamWWmlUN1WpK/+85RXl22hnzmEdSjLG6NjYnUOSrikXlfx+maddY4qutC9nCQ==
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

2026-09-17T12:11:00.237544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012121
observed 9fcd302f07b0e49eba28551a3cb2f859...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:00.218758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012121/manifest.json
observed 9492741492a723deeff6b376f206791d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:00.200951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012121/publication.md
observed 394c82b6eefbf466deb0dd117bbdaebc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:00.181510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012121/publication.txt
observed 2643f80d543c38aeed3044c653a0b365...
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.