OpenTechnical

OT-2026-000029987

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, single stage ejector, pulsed 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-2026-000029987) never changes.

Identity and time

Publication numberOT-2026-000029987 · never reused
Internal UUID01a0ae73-ac49-7ab3-893b-564f709872b2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029987
StatusPUBLIC

Content hashes

Canonical text9f48c56b9f7b1f0424f8cb6c0c47be26dcbbebde9109dd42900c82cfaece5e76
Markdown3ade328be15db36f58ab2fbbb84db998d784c081004bc7a5f675aab5f324e92e
PDF
Publication page9bf21fe1f9190573e96c26ae0796243ac30fbe1b2e24f095eafb22bb136d60b5
Manifest8325623b25048caddb50f49fa3c4286d102171a3e6f9c5aab0ea94e03cde417f

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
Signature40nYyxxm2O4SAoXwHiLlJfXtcZTgUs0lJ841aK2JaX8qGXpZGfaENrYEI1ukAaPyoZb6AnWxa+uHxVPB8FmuAg==
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

2026-09-17T11:38:42.745508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029987
observed 9bf21fe1f9190573e96c26ae0796243a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:42.730267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029987/manifest.json
observed 8325623b25048caddb50f49fa3c4286d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:42.713528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029987/publication.md
observed 3ade328be15db36f58ab2fbbb84db998...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:42.695055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029987/publication.txt
observed 9f48c56b9f7b1f0424f8cb6c0c47be26...
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.