OpenTechnical

OT-2026-000062617

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000062617) never changes.

Identity and time

Publication numberOT-2026-000062617 · never reused
Internal UUID01a0ae8c-0ac1-7722-80d7-10235a6074c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062617
StatusPUBLIC

Content hashes

Canonical textbdfacd3c0afb3231fc7679f48fa6e321da20fba43af7bdc0f051d369e90d231c
Markdown2b09e6143296040033a4fc1fe65583f2dde42e4b28352bf89ef890adc72081b3
PDF
Publication pagebe62fe641b7f251ba21588b2f954e6dff2600bea6baf53d1b3929c417c567a1a
Manifest4d0878686dd1c0f1674a3bb7986b61ff423e9d5a8768b84790083119f1462377

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
Signature4PoHegbthX5Bak4QSYOHiNJhqp/vXCPOGpgqwMUkgUa9hV6OMOEMeIAraXz9p0WwaAcjByO3/vK5s6WrQUDECA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:40:07.423043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062617
observed be62fe641b7f251ba21588b2f954e6df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:07.401544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062617/manifest.json
observed 4d0878686dd1c0f1674a3bb7986b61ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:07.381538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062617/publication.md
observed 2b09e6143296040033a4fc1fe65583f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:07.362082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062617/publication.txt
observed bdfacd3c0afb3231fc7679f48fa6e321...
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.