OpenTechnical

OT-2026-000006449

Publication integrity record

Vacuum cup gripper, two outlet manifold, plant vacuum fed, pressure verified, vented after 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-2026-000006449) never changes.

Identity and time

Publication numberOT-2026-000006449 · never reused
Internal UUID01a0a95b-a143-76fc-9a58-384b242f41bf · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:35:49.702217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006449
StatusPUBLIC

Content hashes

Canonical text0a53bef4fea9e9bc5b2e909bc683ab0c80b336fcd45f108a6f1d34aaccaccc12
Markdowneae53124d197e841b4f7db43a000d4f2e8ac7c27803e98a8030ca5b60118c9da
PDF
Publication pagefc48ffb926e7f98a8164dd3909b9b86213bf10856311db2bef0923fa255d6370
Manifestb49865d12245e825d6a12685604602718b9027f2c54b9900b7f07ec4240d7202

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
SignatureEQVvXcxlHMuThiu9TwFKxxRPFJ8Fmhxx9leQVwzaH/ySY2YjiJIEt3ov6CcRmuC8S2DuEmP8fayDSDXUu6OiAg==
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

2026-09-16T08:40:16.243835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006449
observed fc48ffb926e7f98a8164dd3909b9b862...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:16.228385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006449/manifest.json
observed b49865d12245e825d6a1268560460271...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:16.214946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006449/publication.md
observed eae53124d197e841b4f7db43a000d4f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:16.201653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006449/publication.txt
observed 0a53bef4fea9e9bc5b2e909bc683ab0c...
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.