OpenTechnical

OT-2026-000021849

Publication integrity record

Three cup vacuum gripper, three outlet manifold, three stage ejector, sustained 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-2026-000021849) never changes.

Identity and time

Publication numberOT-2026-000021849 · never reused
Internal UUID01a0ae6f-bb5a-7b3b-a358-b3076c923bcd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021849
StatusPUBLIC

Content hashes

Canonical text196c7ae97a0d4085f0118253c42e5e677c61afaff2442ce1c08e2c942c6d08b9
Markdownf7c613a6c1e32b8f48f7a1f0049e09081c0f91148f7bf8f19d563084b2cb19b8
PDF
Publication page6abc7581504e9f79755fadebaa3dbc62d428f62ad4b874ba0dc44690081fd96c
Manifest458533526357de22eea822b787e77d6df5aad9c3dd80f8c360b88e18295aacea

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
Signature2sVQWLBcxI8oihnJqp4rbDdB44lBypktMgeVPQNsA/trr2D13R/tK7qxi/83wQPFQoVdZ/GfvAVouBGgj8ZaDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:54:24.515508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021849
observed 6abc7581504e9f79755fadebaa3dbc62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:24.498464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021849/manifest.json
observed 458533526357de22eea822b787e77d6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:24.480913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021849/publication.md
observed f7c613a6c1e32b8f48f7a1f0049e0908...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:24.464302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021849/publication.txt
observed 196c7ae97a0d4085f0118253c42e5e67...
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.