OpenTechnical

OT-2026-000079620

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented after 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-2026-000079620) never changes.

Identity and time

Publication numberOT-2026-000079620 · never reused
Internal UUID01a0ae96-0b92-7f80-8873-0b1e77f85644 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:44.101434Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079620
StatusPUBLIC

Content hashes

Canonical textd449bf954e4a576042db5a7435b1c5813596365a9fc91aa7b314a9b537c7d454
Markdownf7b31a9f3a5dd9c82fc0052cd5bd291df99b0783963aaabd8d4c90e35cc8fe28
PDF
Publication pageb9941119f45cff2bf33d832a8d9d6f0f50ed47ee30723f6f340835ef290fd0ec
Manifestbf23b1c1bde7bf3a8eabaecdc26446613876289fbad9c7d089ca8689e407d17d

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
SignatureoaGfyAxJdnTsT48uQ+xZqQGl2UdZkhdx0cIDxJItLhPm0dVwvVQcrwmsPoInqlXYR1+BkGnw+6Ea4+ic717iDw==
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

2026-09-17T10:05:17.019286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079620
observed b9941119f45cff2bf33d832a8d9d6f0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:16.999435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079620/manifest.json
observed bf23b1c1bde7bf3a8eabaecdc2644661...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:16.979136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079620/publication.md
observed f7b31a9f3a5dd9c82fc0052cd5bd291d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:16.957943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079620/publication.txt
observed d449bf954e4a576042db5a7435b1c581...
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.