OpenTechnical

OT-2026-000003260

Publication integrity record

Self-actuated vacuum grip

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-2026-000003260) never changes.

Identity and time

Publication numberOT-2026-000003260 · never reused
Internal UUID01a0a6a5-c335-761d-b403-2fd72f37bd1a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:57:56.405440Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003260
StatusPUBLIC

Content hashes

Canonical text0551bbd54c27e942eb9e1fc1088f1adbce68fd5e195115050d8d785a4a1f7e7f
Markdowne0f99431bb8c4106c5d1f1645d32b43a0c7e46478c3ce96d49f9554e46fc4c7f
PDF
Publication pagee7d92191b1d82f8f1419cac93155984be2c574d0ba4684e77dd66da5f5ee6a58
Manifest99da436e06feffa4937cb1cc3f9a9003808376ff13dc833f8c88152bd36f6e3d

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
Signature0JXM3A69SQ5FsWofi0ZFF6p/RzCngnNUMda4xHcWENGrLCywY6RIKZBsvXdAzcD65Ost+xqexmLlQZDpmJwkCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:07:03Z
batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof
root d42f3e627490c26ffd144bf37543fecf...

Independent retrieval

2026-09-15T20:00:04.665386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003260
observed e7d92191b1d82f8f1419cac93155984b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:04.635174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003260/manifest.json
observed 99da436e06feffa4937cb1cc3f9a9003...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:04.516195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003260/publication.txt
observed 0551bbd54c27e942eb9e1fc1088f1adb...
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