OpenTechnical

OT-2026-000073396

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000073396) never changes.

Identity and time

Publication numberOT-2026-000073396 · never reused
Internal UUID01a0ae92-efb8-775b-a7b1-a9ca300e7457 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073396
StatusPUBLIC

Content hashes

Canonical text42a4555f569b6bf0d32b02718a92dab876a697984dbb3a525b1110afac2b72e1
Markdowna10ba6b465ac68530784b29c9e092d215107a5a49cff22bd41af97d0f494b28b
PDF
Publication page06f3d565dc3cbee91eeb7b454f5debac03fbe7f5b2df4f9f9081d81cd6ad51db
Manifest9e050a8d382221c911fbfebdf36869a0b520b53bb94919fd69dfc8659f6161db

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
SignatureR2k4e0/Nz5e/VX9hj44Nib24fn2RyTC8gSM09Z6UWMiXHhg14vPs7AUQxrvozNRAdqcUbU6GKkkc9DujsLW9Cw==
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

2026-09-17T10:21:26.345673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073396
observed 06f3d565dc3cbee91eeb7b454f5debac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:26.328919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073396/manifest.json
observed 9e050a8d382221c911fbfebdf36869a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:26.312381ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073396/publication.md
observed a10ba6b465ac68530784b29c9e092d21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:26.295783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073396/publication.txt
observed 42a4555f569b6bf0d32b02718a92dab8...
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.