OpenTechnical

OT-2026-000089480

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000089480) never changes.

Identity and time

Publication numberOT-2026-000089480 · never reused
Internal UUID01a0ae9b-db02-7bf0-94b6-9813f643a2e2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089480
StatusPUBLIC

Content hashes

Canonical text81023ce270b34150b396dca4b359c4e3ae536b92714dd24fcf6a331ac816cf35
Markdown220cc0f83727244e9c7466476c2d8a612a070dc462dcf1641f2ccfff4d9219e2
PDF
Publication page9cedb61721c5d32b5aa96ebf0ebb5a99d5d16c4d289b60312bc33d6dc9101f86
Manifest62c874beef354288d92702002875b3f892365415f50dcf103538077dc6d1d1e0

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
SignatureF1hlwGgb5dm7pdBhYfjmHDftM4r4Do2v0SdtLt+/zXT2S5R5VU5vEAB0LMzmn+xvwjiNulAxlK1WZJtQ50EtBw==
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

2026-09-17T09:47:37.785493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089480
observed 9cedb61721c5d32b5aa96ebf0ebb5a99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.768718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089480/manifest.json
observed 62c874beef354288d92702002875b3f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.752199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089480/publication.md
observed 220cc0f83727244e9c7466476c2d8a61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.734546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089480/publication.txt
observed 81023ce270b34150b396dca4b359c4e3...
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.