OpenTechnical

OT-2026-000050383

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000050383) never changes.

Identity and time

Publication numberOT-2026-000050383 · never reused
Internal UUID01a0ae82-5c47-7569-b00a-05cfcbcd978e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050383
StatusPUBLIC

Content hashes

Canonical text0523401809ba9b60b1146acebb3d20e4ab04fc77f1dd78bf8dd7b4a90275df6f
Markdowndb822288d54bf300731f9b5e00d332220268a0a986ea3a764186e2bc80a5e150
PDF
Publication page71135acde95006f5ed82089f5a313e6801050908f975af6883f96a4330f7e1f3
Manifest89244c26fd9b8fbfadb3b4b0b6463e770a8e99cce5da636ded25e7197e819204

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
SignatureG/kwto98TiPKQRnCJI3cPZe6FuR7G5kxl+14CDK1iZAix7dXusIu1ynu3gUy8Mwy+igLeGXfQo2fhIGHx2cXCA==
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

2026-09-17T11:01:25.177342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050383
observed 71135acde95006f5ed82089f5a313e68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:25.158292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050383/manifest.json
observed 89244c26fd9b8fbfadb3b4b0b6463e77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:25.138458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050383/publication.md
observed db822288d54bf300731f9b5e00d33222...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:25.120984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050383/publication.txt
observed 0523401809ba9b60b1146acebb3d20e4...
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