OpenTechnical

OT-2026-000006557

Publication integrity record

Bellows cup vacuum gripper, three zone face, ejector fed, contact triggered

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-2026-000006557) never changes.

Identity and time

Publication numberOT-2026-000006557 · never reused
Internal UUID01a0a95f-582e-7325-8291-3240f423e387 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:39:53.137130Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006557
StatusPUBLIC

Content hashes

Canonical text6c0d6433893908e286648ff2cbeb1ce2fd8c07a8bbe3f31719ba6466aa89aafc
Markdown5eca381fd9627931856051449f42e9ab05285308cb6a2d2a176be9afcc357a5b
PDF
Publication page14f180812f67424ac75078e74abcf3cf829ad824d76c5bed72ec21c00cd4a952
Manifest2de37c135935a58c4b2a8f144f089177e1959d0aaa7a11a25b70c51baaedd473

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
SignatureGKICFBvGH97h+L7QlHb/F/moOPlJvhwPxKo/7eFwlmANTdDJXmakeDH2nQNSIMRXOI4XZiYC6V8Pom/ZHTKgAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:03.221647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006557
observed 14f180812f67424ac75078e74abcf3cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.202706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006557/manifest.json
observed 2de37c135935a58c4b2a8f144f089177...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.174910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006557/publication.md
observed 5eca381fd9627931856051449f42e9ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.162525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006557/publication.txt
observed 6c0d6433893908e286648ff2cbeb1ce2...
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.