OpenTechnical

OT-2026-000053547

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000053547) never changes.

Identity and time

Publication numberOT-2026-000053547 · never reused
Internal UUID01a0ae85-0a92-7622-95a6-ed4648ce2e94 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053547
StatusPUBLIC

Content hashes

Canonical textb8dd81bd784b09f900af3d9c194ff59c301b907e397aca325e30b0786c6a27d6
Markdownbe01a47f1c5c942afa466d653543f952753beeb0d39357d197e85fb5399fd1aa
PDF
Publication page4e59f63dde1f514a08408dbc61d25040756d10094bf8f26c2bea05b76c61557e
Manifest8e44c598e4cf1d0e02a21002284da55c6a9b8fe3c9ebc10e72e01de4cd65a741

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
Signature8kq2gZtKnUi/iyYg+GYT8+T5duH06si/oqAYRTGyZcOFC3V0E/TfFNTyRlw/9vubpp9CQWX/0VloN8Fh1XAeCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-10-18T00:41:56.074698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547
observed 4e59f63dde1f514a08408dbc61d25040...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-18T00:41:56.019673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547/manifest.json
observed 8e44c598e4cf1d0e02a21002284da55c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-18T00:41:55.970748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547/publication.md
observed be01a47f1c5c942afa466d653543f952...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-18T00:41:55.896936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547/publication.txt
observed b8dd81bd784b09f900af3d9c194ff59c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-12T04:23:50.723105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547
observed 4e59f63dde1f514a08408dbc61d25040...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-12T04:23:50.707555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547/manifest.json
observed 8e44c598e4cf1d0e02a21002284da55c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-12T04:23:50.687298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547/publication.md
observed be01a47f1c5c942afa466d653543f952...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-12T04:23:50.624170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053547/publication.txt
observed b8dd81bd784b09f900af3d9c194ff59c...
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