OpenTechnical

OT-2026-000073045

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum 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-2026-000073045) never changes.

Identity and time

Publication numberOT-2026-000073045 · never reused
Internal UUID01a0ae92-c816-75c1-b5d0-366d774a9848 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073045
StatusPUBLIC

Content hashes

Canonical textebfa36889a5131404ac23642be106c0ef1843a8c2afc8588b8fde0716d415c84
Markdownffe5e2716b3331c087dee0f0ee7ac8df793fe37f2feb427fd82cdfa5ddf46715
PDF
Publication pageb1c48c60aade7ce455d3d5bbb64f4ae994b5a48189232f7453ba4501a2980183
Manifestea87a7e12d960bad393d75b063ffffd24e15eba5987caa3f052364c5523180f8

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
SignatureOW1o2kPEGUJxcBHV0zYw4hBIgtWr2MsO3ecJPYjbb4R8g6aw6ecLc4uSMEZSEq9l95MXY60re1uaGNrh936lCQ==
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

2026-09-17T10:21:59.315570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073045
observed b1c48c60aade7ce455d3d5bbb64f4ae9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:59.298804ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073045/manifest.json
observed ea87a7e12d960bad393d75b063ffffd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:59.281693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073045/publication.md
observed ffe5e2716b3331c087dee0f0ee7ac8df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:59.264383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073045/publication.txt
observed ebfa36889a5131404ac23642be106c0e...
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.