OpenTechnical

OT-2026-000042208

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, pulsed blow-off 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-2026-000042208) never changes.

Identity and time

Publication numberOT-2026-000042208 · never reused
Internal UUID01a0ae7a-5d72-7e38-b1f6-b5f1bbe0deee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042208
StatusPUBLIC

Content hashes

Canonical text32ddbb4b3b8808d6a877c9f518d55371b674e2f84e82c487b9fd5b865a9e1044
Markdown79f23e5194bf4d842dcc462b6ee9f50dfd853ec493dfdf79c873a117219b741b
PDF
Publication pagefdd45b0fec2cdd39d986ff081bbb49d8d447d89505a6d7f9ab57c71d7f8a57ec
Manifest509f646c447c74c2b2c2e96ebd1ba15f0951a67e164d12e69cf78e0c062229e7

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
SignatureehU0eMqyPaZefYT4v84F1x56ru90msbBlSxeYRyxXjrN+SdwW5qbeuU1kT8FFq+jW9yLVOKrEBM4b9hPB7lgAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:15:52.641824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042208
observed fdd45b0fec2cdd39d986ff081bbb49d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:52.623469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042208/manifest.json
observed 509f646c447c74c2b2c2e96ebd1ba15f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:52.592796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042208/publication.md
observed 79f23e5194bf4d842dcc462b6ee9f50d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:52.564311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042208/publication.txt
observed 32ddbb4b3b8808d6a877c9f518d55371...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent