OpenTechnical

OT-2026-000074859

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed 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-2026-000074859) never changes.

Identity and time

Publication numberOT-2026-000074859 · never reused
Internal UUID01a0ae93-ac2c-76ea-8667-431894af28ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074859
StatusPUBLIC

Content hashes

Canonical textdc226c013f4a76de24d84580b6b0f957e702d828759334d4711530cc65ee4237
Markdown0fb0b37240ad205abcb7bb720e3d98d1b0c755a983f905ab93191da97d0edb7f
PDF
Publication page852e7b47ff8e133dcf3aa2cd81c175f110c5ef706dcf01573522ec7e5d92b00d
Manifest3ee6674ed4cbf5e2706e176e0c335a4ef5f79f48408133cf4684b015be6c860e

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
SignatureK4L4qN7cwlJS50015CwpWfFDg88qWylIMeV1ryUaNR9c0SLiZamLWnMCjGCG57+HbTrbpheWbHSnJPTWX6YrBg==
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

2026-09-17T10:18:34.468141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074859
observed 852e7b47ff8e133dcf3aa2cd81c175f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:34.448219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074859/manifest.json
observed 3ee6674ed4cbf5e2706e176e0c335a4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:34.429331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074859/publication.md
observed 0fb0b37240ad205abcb7bb720e3d98d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:34.410709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074859/publication.txt
observed dc226c013f4a76de24d84580b6b0f957...
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.