OpenTechnical

OT-2026-000006281

Publication integrity record

Bellows cup vacuum gripper, pump fed, pressure verified, contact triggered, vented before set down

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-2026-000006281) never changes.

Identity and time

Publication numberOT-2026-000006281 · never reused
Internal UUID01a0a955-6b89-7833-8b33-abe6473f3af8 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:29:02.732077Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006281
StatusPUBLIC

Content hashes

Canonical text0ede683a0267e419106cf012e62513812f56c6bedbaf0c8a78137a45c7dc222a
Markdown50c69d9ed6204412f9e2946221682a25cc773c0f4ccf32eedebba32a67c78c09
PDF
Publication page0aef36bc7629466450a4bd4e22997657b39a7aa27e757af8acd2afb6165a551a
Manifestfc25a6aa23d93dad23e0694d231858e41c31550ac323b506579cbb7c49247eee

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
SignatureSN2LFuVH+hKyXoZ3KboYiPRkB3kMWh5dHcFASSQUAgnEr6DsQMzv1VA39lp141Dw8WA2KnhWXPEBiwTDLN00AA==
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

2026-09-16T08:30:06.191051ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006281
observed 0aef36bc7629466450a4bd4e22997657...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:06.175940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006281/manifest.json
observed fc25a6aa23d93dad23e0694d231858e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:06.162458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006281/publication.md
observed 50c69d9ed6204412f9e2946221682a25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:06.148713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006281/publication.txt
observed 0ede683a0267e419106cf012e6251381...
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.