OpenTechnical

OT-2026-000006442

Publication integrity record

Porous face vacuum gripper, ejector 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-2026-000006442) never changes.

Identity and time

Publication numberOT-2026-000006442 · never reused
Internal UUID01a0a95b-61d7-7dc1-bacb-a63ad9c045fd · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:35:33.465774Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006442
StatusPUBLIC

Content hashes

Canonical text8c3aa139f1350df4458c3a84dced23c8e4263ffb319a6dea4ed7d14c22d2bc39
Markdown49865aa5d47cd582b068b541d0463780f277b59a5f2238b59a6de1d870e8ad0d
PDF
Publication page1009d305148820de368c4f96b8ffb8d7ad8314a17a9bcd38a91ea3e63a31abc4
Manifestaf3cfa211f2a1014e25c9749c6de6a4454c7e981450d1361909b0ec547bf866f

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
Signaturepdwn4BB3dXjUceMcLVcEWv8f5Pdy7pud+JOFb3GgQ357kI/De3WtDMceLD/YqlYB9qIVu7SbG949eXnfeonFAw==
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

2026-09-16T08:40:17.138764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006442
observed 1009d305148820de368c4f96b8ffb8d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:17.124117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006442/manifest.json
observed af3cfa211f2a1014e25c9749c6de6a44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:16.986368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006442/publication.md
observed 49865aa5d47cd582b068b541d0463780...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:16.974920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006442/publication.txt
observed 8c3aa139f1350df4458c3a84dced23c8...
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.