OpenTechnical

OT-2026-000058977

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000058977) never changes.

Identity and time

Publication numberOT-2026-000058977 · never reused
Internal UUID01a0ae89-47a0-7459-8947-943ca8402879 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:43:47.568543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058977
StatusPUBLIC

Content hashes

Canonical textb4fd5abdad1130b64920b1c8253424f8eaea3c2cf762ce227d9b5d7fd357a041
Markdown91891ab74c01a50a81600bcbf2bd992334d6261bd162d0f7c42fba650eb3204b
PDF
Publication pagef1f5453ea75a33358c02215e7d468cea2e1f3038c476f17409322a99caa68b4a
Manifest6354d411d28fb7386c1b4af90808a5d7722dc52199b2a01f87b3e6ea6f610a20

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
SignatureWxLEz1mahFjUXdLhxn9b0dZxiQI6zbpNLJ2T1lJHaCDnnkaNumxkZZCrHVSKmRppuAJgaXAh0TNVzxo0jq2dDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:46:33.270040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058977
observed f1f5453ea75a33358c02215e7d468cea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:46:33.254763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058977/manifest.json
observed 6354d411d28fb7386c1b4af90808a5d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:46:33.238400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058977/publication.md
observed 91891ab74c01a50a81600bcbf2bd9923...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:46:33.222214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058977/publication.txt
observed b4fd5abdad1130b64920b1c8253424f8...
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.