OpenTechnical

OT-2026-000087859

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, supply line 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-2026-000087859) never changes.

Identity and time

Publication numberOT-2026-000087859 · never reused
Internal UUID01a0ae9b-1aa5-7e05-8a29-53aee16953ce · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087859
StatusPUBLIC

Content hashes

Canonical textec54d37d23f5e12180f883dbd008217cf9a863102a024ce04642c95a4e808011
Markdown8b4061b49b4f64abb5e53f51425b93c647d6047fe50681d2d7e12a373d957283
PDF
Publication page5a3fc8888d1f32b22d03412bbb4064540e15c69dca45793820a636cd5fa744fe
Manifestadb368f34acefdf6143797fc7997c887820e7ba6f0b5b0ec809df625c534824b

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
SignaturehXvK6scr/7KiRuFxWTHgZTgWy/L5zU9kciMO0/+g3ILAW8WPVeOjuyxQrA/hgFOOMdu37yLFuCa8b8SBsS2TAQ==
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

2026-09-17T09:49:06.654192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087859
observed 5a3fc8888d1f32b22d03412bbb406454...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.636164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087859/manifest.json
observed adb368f34acefdf6143797fc7997c887...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.617966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087859/publication.md
observed 8b4061b49b4f64abb5e53f51425b93c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.599961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087859/publication.txt
observed ec54d37d23f5e12180f883dbd008217c...
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.