OpenTechnical

OT-2026-000056135

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000056135) never changes.

Identity and time

Publication numberOT-2026-000056135 · never reused
Internal UUID01a0ae87-0a4b-71dd-bdef-f850dceaf353 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056135
StatusPUBLIC

Content hashes

Canonical textb3c30611d68a7e43989ef8d19d5b10080768199057413ab6c830f626f5a23791
Markdowna711f5c9a11a410cac2a3ac2dfceeeb4e063101bf2792e6e2278fc3409538274
PDF
Publication pagec58d32ebf19079c7945c06586743fca1eccf8dfb815ca26d3e61a6b1abd9d885
Manifest84dbc4180792136c97e4d9e47ae15a87a196431f1b7d59cd470f14955b0ef007

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
Signature/d2WcsaBKs8DHgsretdq+BhUdo2DfSP7UTedVYnQVYNMA/TTyifr7mvNTvlmGXuqatgAJovZp0a3FYa4ulLECQ==
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

2026-09-17T12:43:01.382546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135
observed c58d32ebf19079c7945c06586743fca1...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:43:01.064598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135/manifest.json
observed 84dbc4180792136c97e4d9e47ae15a87...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:43:00.833286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135/publication.md
observed a711f5c9a11a410cac2a3ac2dfceeeb4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:43:00.649727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135/publication.txt
observed b3c30611d68a7e43989ef8d19d5b1008...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T10:51:41.053259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135
observed c58d32ebf19079c7945c06586743fca1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:41.034521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135/manifest.json
observed 84dbc4180792136c97e4d9e47ae15a87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:41.013866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135/publication.md
observed a711f5c9a11a410cac2a3ac2dfceeeb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:40.995287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056135/publication.txt
observed b3c30611d68a7e43989ef8d19d5b1008...
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.