OpenTechnical

OT-2026-000067244

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained blow-off 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-2026-000067244) never changes.

Identity and time

Publication numberOT-2026-000067244 · never reused
Internal UUID01a0ae8f-6bd5-7fbc-9766-c4a6645cef24 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067244
StatusPUBLIC

Content hashes

Canonical textdd7a2877c149fdc0132e0bc49a50e229248bba0ae8b3837f71488299df7e5292
Markdown37bb30cfa211c7b10ce84f5fdfaf3669652f8a601320ce16acd23a17ddc17484
PDF
Publication page4485e9f730ad288d19dc815813667ba6a9f930a4dcb75b78a26ea3a4d58c262e
Manifest265ebd0c1beef219d21d366f600db88dbf89f010c9a8e030223c3b107b803231

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
SignaturemlrmtLbHY7Pz7/coEBr9laePzcHtJWK1/e1eacHYgUbcKbQ/FDol6C8N6VWAO6nHNV08Tcn/A6Bc0cmWVLZ5CQ==
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

2026-11-05T00:42:01.313636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244
observed 4485e9f730ad288d19dc815813667ba6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-05T00:42:01.265591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244/manifest.json
observed 265ebd0c1beef219d21d366f600db88d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-05T00:42:01.217933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244/publication.md
observed 37bb30cfa211c7b10ce84f5fdfaf3669...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-05T00:42:01.083975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244/publication.txt
observed dd7a2877c149fdc0132e0bc49a50e229...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:15.476621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244
observed 4485e9f730ad288d19dc815813667ba6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:15.424738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244/manifest.json
observed 265ebd0c1beef219d21d366f600db88d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:15.349527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244/publication.md
observed 37bb30cfa211c7b10ce84f5fdfaf3669...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-04T08:41:15.237352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067244/publication.txt
observed dd7a2877c149fdc0132e0bc49a50e229...
fetched by grabo-systems from 34.44.131.203, 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