OpenTechnical

OT-2026-000091554

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000091554) never changes.

Identity and time

Publication numberOT-2026-000091554 · never reused
Internal UUID01a0ae9c-f16e-7cd8-8226-5b520073f243 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091554
StatusPUBLIC

Content hashes

Canonical text6e61e8ac4b7057eefaa5cb67f588276b83b87bd12fc3cce201eb68d6d12a2661
Markdown7bae3c8aa50bb5ec479c16f38e8a8d0a03e422b13865fdd0e9623c62ef16c19f
PDF
Publication page77344a3bc2b797a6e38951ce0578108c92cb45789e7c901e274a202c3ec6345a
Manifest8821da35c083c251fd64c2524bb155a9fbee8b67ad2f1f622555caef12fe641f

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
SignatureQR4ON4YpmzSjWXGU9tQOgpJ0W7ljHha6+5/2i4x71z+LyzQwv4ufu+0C476zl1s4kek4oZcjK7eQLmMfdd8nBw==
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

2026-09-17T09:43:49.388682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091554
observed 77344a3bc2b797a6e38951ce0578108c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.372987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091554/manifest.json
observed 8821da35c083c251fd64c2524bb155a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.356330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091554/publication.md
observed 7bae3c8aa50bb5ec479c16f38e8a8d0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.338864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091554/publication.txt
observed 6e61e8ac4b7057eefaa5cb67f588276b...
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.