OpenTechnical

OT-2026-000055771

Publication integrity record

Three cup vacuum gripper, three 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-2026-000055771) never changes.

Identity and time

Publication numberOT-2026-000055771 · never reused
Internal UUID01a0ae87-09cb-763d-96f1-96a056d89a02 · 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-2026-000055771
StatusPUBLIC

Content hashes

Canonical text742e36d6b4e79af9914cbcaa6ad029bd5069230feda4ed3e4d54a7b9e2601dca
Markdown58d0e1407fadea8f3a11e46c0f28913d8e93ec7c3427a974029bbf2665625edb
PDF
Publication page781cdccc147083f0dd88a2e9a87c35c6992ccdfe5e6bfa1eb1c0ebb8806412ce
Manifest1569dcd291c701192ce8de7f2a4208d4ca32193389c7171263cdb39f556a8663

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
SignatureV/bNavQMf6SHo5EDsoBQMv5RomMu86yiZkT55kXCLNY6oIvPa/KwJxlI9swGeEYVd8lhsSYkf2QStFf7kfdGAQ==
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

2026-09-17T10:51:07.716158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055771
observed 781cdccc147083f0dd88a2e9a87c35c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:07.697380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055771/manifest.json
observed 1569dcd291c701192ce8de7f2a4208d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:07.676584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055771/publication.md
observed 58d0e1407fadea8f3a11e46c0f28913d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:07.660117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055771/publication.txt
observed 742e36d6b4e79af9914cbcaa6ad029bd...
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.