OpenTechnical

OT-2026-000007990

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000007990) never changes.

Identity and time

Publication numberOT-2026-000007990 · never reused
Internal UUID01a0ae6a-908b-7ed0-be74-e1489917a9f8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:14.564317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007990
StatusPUBLIC

Content hashes

Canonical textb866c03f7796cbba64fab3278468898501b7087ce106370734d658d5571b37a9
Markdown3e33061704968faf67fcbc28affb4a9aa92e77c5a7c5460df0e427090563eb14
PDF
Publication page351be14238c0f2209f39084d03051eececeef2692eb3d140dd29add41d87d2ea
Manifestbcebff0ddc02ad5ebb26f5ac9e87bd05eca4d805320604a8eb799a97a14fe378

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
Signature5MewcKtvywQqXSBLUJ95a7xzbcCp1LPASlSGB1CE7ZvCFZAZAWR7+YAeREGhDCQZeSBqacHvF953AUgqmL8jCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:20:32.210541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990
observed 351be14238c0f2209f39084d03051eec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:32.191688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990/manifest.json
observed bcebff0ddc02ad5ebb26f5ac9e87bd05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:32.172987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990/publication.md
observed 3e33061704968faf67fcbc28affb4a9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:32.152379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990/publication.txt
observed b866c03f7796cbba64fab32784688985...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:08.302598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990
observed 351be14238c0f2209f39084d03051eec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:08.281878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990/manifest.json
observed bcebff0ddc02ad5ebb26f5ac9e87bd05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:08.242425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990/publication.md
observed 3e33061704968faf67fcbc28affb4a9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:08.212210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007990/publication.txt
observed b866c03f7796cbba64fab32784688985...
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.