OpenTechnical

OT-2026-000005947

Publication integrity record

Porous face vacuum gripper, pump fed, pressure verified, sustained blow off 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-2026-000005947) never changes.

Identity and time

Publication numberOT-2026-000005947 · never reused
Internal UUID01a0a94a-1d96-7b02-b036-9af2cc23c3f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:16:41.880767Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005947
StatusPUBLIC

Content hashes

Canonical text2781eca7a2164ccbe8c9c89ecfd5143cab7f125ec9d70611b78c630b143529ac
Markdown3338865b6a9288d3dcafb90133f52161ca1ab6d0b5244134c46e10e4ac696989
PDF
Publication pageac0cf79e4132e7277567a4ca2c66c13b271ff2d986f495c5e3fd4d8f26a31f07
Manifest943db2205c747cec32f5b50f4abc986cc5ed817e846c9503d0607c7cc305ffa1

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
SignatureT2Nf5geNI/OZkQHEHPMN0yRc5KIZf2Y8s3Rjm59ulyPn7Px56IdN5MbAAyFfocjY+66mVR4epgsyRnaox1LfAQ==
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

2026-09-16T08:20:14.160822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005947
observed ac0cf79e4132e7277567a4ca2c66c13b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:14.145433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005947/manifest.json
observed 943db2205c747cec32f5b50f4abc986c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:14.129593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005947/publication.md
observed 3338865b6a9288d3dcafb90133f52161...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:13.990230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005947/publication.txt
observed 2781eca7a2164ccbe8c9c89ecfd5143c...
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.