OpenTechnical

OT-2026-000006203

Publication integrity record

Porous face vacuum gripper, plant vacuum fed, vented after set down, open cell

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-2026-000006203) never changes.

Identity and time

Publication numberOT-2026-000006203 · never reused
Internal UUID01a0a952-d32f-7091-9e5f-b3b123bee53c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:26:12.658072Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006203
StatusPUBLIC

Content hashes

Canonical text0d86129be3f88c307ebd6815c2ba2930187495eaa4585dc7d31c8f9e21c3f687
Markdownfd01a02e36b1be9d8847ca2f98165e29337f4f79e8ad4e4cc3c270e5c8d9a01f
PDF
Publication page609d388e476e2c457c2d6a7376201a844ef46360127396df61b8dbe2a08748ac
Manifest109e09ef14ef9fb85607fa82fc02f3dba9289a9363f7b6591930b3356f3d7d81

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
SignaturetOG1/2/hE/0DJAf2L/m/cfSixpy4CjtQTIGlNaLkavwCRSBe9NSppKRH+BDLpibHRpwuvEm5xgWdRioEVQsfAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:15.623378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006203
observed 609d388e476e2c457c2d6a7376201a84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:15.496215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006203/manifest.json
observed 109e09ef14ef9fb85607fa82fc02f3db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:15.482017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006203/publication.md
observed fd01a02e36b1be9d8847ca2f98165e29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:15.467127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006203/publication.txt
observed 0d86129be3f88c307ebd6815c2ba2930...
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