OpenTechnical

OT-2026-000079889

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, 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-2026-000079889) never changes.

Identity and time

Publication numberOT-2026-000079889 · never reused
Internal UUID01a0ae96-4376-794d-aebb-23253c49e820 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079889
StatusPUBLIC

Content hashes

Canonical textb8466c2e89bd344ee5e8ea061c81023841968dda4c1ddeb67dd06290f0f80312
Markdown5f41a783636d545e1d6fdd4cc0923a47d8e9e644c0cdac212c8c1ebacc69ca3d
PDF
Publication page1aaaa5bf2377052d71d15de254dfc303261f12ce6cc9f19df49f8927cf9665a6
Manifest71cac31786c8ef29f0b3ad535bae6c5b2f327bdc17be9d75d8960fa7faa760c8

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
Signaturex8gujly82NR4ZUWBgL+1RWMJZ1rdoyrpUgoOhh/fCgaD98Z7mPKRwZmbmmoP2KcgfXjh/aW9BJCpNb6/SOv2Ag==
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

2026-09-17T12:41:31.337855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889
observed 1aaaa5bf2377052d71d15de254dfc303...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:41:31.180685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889/manifest.json
observed 71cac31786c8ef29f0b3ad535bae6c5b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:41:30.975679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889/publication.md
observed 5f41a783636d545e1d6fdd4cc0923a47...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:41:30.823728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889/publication.txt
observed b8466c2e89bd344ee5e8ea061c810238...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T10:03:46.935013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889
observed 1aaaa5bf2377052d71d15de254dfc303...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:46.916515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889/manifest.json
observed 71cac31786c8ef29f0b3ad535bae6c5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:46.896897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889/publication.md
observed 5f41a783636d545e1d6fdd4cc0923a47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:46.878908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079889/publication.txt
observed b8466c2e89bd344ee5e8ea061c810238...
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.