OpenTechnical

OT-2026-000069369

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, pressure sensor per zone, pulsed blow-off before 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-2026-000069369) never changes.

Identity and time

Publication numberOT-2026-000069369 · never reused
Internal UUID01a0ae90-b529-7138-b7d6-a9506d2c1877 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:54.310022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069369
StatusPUBLIC

Content hashes

Canonical textb8cf5ecbcc55885d3e1d35fd9860e035913dd05d759765410c7898b657cf3f6d
Markdown44f25009eada25739c835e7bd26d31626b2e73e03f9dceab1a3ed17eb82f0e3f
PDF
Publication page7ab5a988921ef19533152f1078aee6a3ad963a8087c80a72f7d4283e2d661bea
Manifest12f1a054213c4f80a9bd9e1f0c1a2aa6d362d8aee289a844ca9aea0eb32cf59e

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
Signature8qUzvV9kIuvrGdE0RgmseK7bFvlj08T4wl96NXIXtP6DHtONlddPVSk8292wohOEZxR0SDrCkxovgzmme3xBDQ==
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

2026-10-09T04:42:13.576538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369
observed 7ab5a988921ef19533152f1078aee6a3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-09T04:42:13.482490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369/manifest.json
observed 12f1a054213c4f80a9bd9e1f0c1a2aa6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-09T04:42:13.291199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369/publication.md
observed 44f25009eada25739c835e7bd26d3162...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-09T04:42:13.169588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369/publication.txt
observed b8cf5ecbcc55885d3e1d35fd9860e035...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T10:30:17.342575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369
observed 7ab5a988921ef19533152f1078aee6a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:17.323439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369/manifest.json
observed 12f1a054213c4f80a9bd9e1f0c1a2aa6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:17.299356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369/publication.md
observed 44f25009eada25739c835e7bd26d3162...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:17.278091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069369/publication.txt
observed b8cf5ecbcc55885d3e1d35fd9860e035...
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

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