OpenTechnical

OT-2026-000001767

Publication integrity record

Gripper and procedure for the separation of layers

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-2026-000001767) never changes.

Identity and time

Publication numberOT-2026-000001767 · never reused
Internal UUID01a0a678-8cc6-7178-9b06-78b98069aef4 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:08:33.350659Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001767
StatusPUBLIC

Content hashes

Canonical textde3aaab21d6e5285edc0f2a1318ef2e8d064b1128cd714835fc121d17f6c5c04
Markdownc03cbb06d052bf4333965f7c3c4e24ee84b40c658c45c9fd5e6f02f224b0282b
PDF
Publication paged56da88adb3bb73b12147d69a7f84402c8cc274e82e7551f92771977e98e16cc
Manifest4fa21ddcf5616f213839caea88960d55a9f5735f8531d0ea15e2d43192e7a864

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
SignatureOSnQH1305YmGU/JXFYLI2ppx4juVuJ55guvdnTse+X2eEIRbS5dz9+FYfrpeimJIY4/A78OZ+GhIk2HqDKP/DQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-15T19:10:27.826632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001767
observed d56da88adb3bb73b12147d69a7f84402...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:27.673992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001767/manifest.json
observed 4fa21ddcf5616f213839caea88960d55...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:27.662313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001767/publication.txt
observed de3aaab21d6e5285edc0f2a1318ef2e8...
fetched by instance-3.rotem.ai from 127.0.0.1, 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