OpenTechnical

OT-2026-000027512

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, 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-2026-000027512) never changes.

Identity and time

Publication numberOT-2026-000027512 · never reused
Internal UUID01a0ae72-6998-7e55-9081-a7e6142cf1ff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027512
StatusPUBLIC

Content hashes

Canonical text540abc284d8261d702775b4f6c05e40dbb743ecc772efaed13a8b48668f8d6fb
Markdown8f4b13cb93d09de0428329fab05ca97be344db592f7e555a15b8b6799242a2fc
PDF
Publication page4fbfacd96d06014eb06882cf5b987ac732c13c853928bf2111b519668a010ff4
Manifest0763c5db176f081556863a055e826978008b1ea4b003d1648b64ca3404bfefbe

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
SignatureopniqXYpt6DvhFGZqw6KF48Jj4sB9OodvLGvdphDjGydoVP/DRg8ChWVH7vmzIDXHgn83KYACZyzObyq+lRkDg==
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

2026-09-17T11:42:59.319407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027512
observed 4fbfacd96d06014eb06882cf5b987ac7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:59.300215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027512/manifest.json
observed 0763c5db176f081556863a055e826978...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:59.284023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027512/publication.md
observed 8f4b13cb93d09de0428329fab05ca97b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:59.263101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027512/publication.txt
observed 540abc284d8261d702775b4f6c05e40d...
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.