OpenTechnical

OT-2026-000052153

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, vented 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-2026-000052153) never changes.

Identity and time

Publication numberOT-2026-000052153 · never reused
Internal UUID01a0ae83-e790-7d87-92dc-0f7e6af15f4b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:55.233643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052153
StatusPUBLIC

Content hashes

Canonical text3a16fde78ece7813215b504c27a5d9014dbdc2aa6fd2e36cf16520d13c49f992
Markdown1c0a10763b7a046092fc9b0bd1389f6195fa3cd83c220178c86d409d58a93a6b
PDF
Publication page74a9bc1c0a3657e3180f1a5cb68314ef11acfb3550ef98c220ceb0ddbfa7096d
Manifest39c86cbc0116a64e55af0cd1d3a66a7bdcad3aed67951ec16f86842c1b80ec74

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
SignaturexW5Z6wfWV7keVPGQgDCeFwTqVfOq4DCIAgsgA92LMdSuV+XaK8lLEAtSdqTO4Ok9ktiy4AQTuVfI6RBj8CDXAw==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:57:42.440690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052153
observed 74a9bc1c0a3657e3180f1a5cb68314ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:42.424180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052153/manifest.json
observed 39c86cbc0116a64e55af0cd1d3a66a7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:42.407926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052153/publication.md
observed 1c0a10763b7a046092fc9b0bd1389f61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:42.389962ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052153/publication.txt
observed 3a16fde78ece7813215b504c27a5d901...
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.