OpenTechnical

OT-2026-000005415

Publication integrity record

Bellows cup vacuum gripper, two zone face, ejector fed, contact triggered, 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-2026-000005415) never changes.

Identity and time

Publication numberOT-2026-000005415 · never reused
Internal UUID01a0a938-4a82-7d71-a2e9-831da58e2e58 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:57:13.732819Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005415
StatusPUBLIC

Content hashes

Canonical text4a761b98e60d4cabb874a5bd9322c233e7e6ea231aa2600a227e4a2f7781160f
Markdown983355229763f36ce004e8db370cda3c6c37e95a15409dc3187a98da6945ca59
PDF
Publication page40ce61304868f57ef0a26364cc45af0ab1e3455130ccce3f1e0d6beaea9ed17c
Manifest9a2ae88acd69e32ebae3943a8a9a1634f923a18d82e5417bc7ac150a4c5cc97f

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
Signatureadb0JDFp6sgCMA+mqPdCezvT6IxugMUuvt0bnDLhgaaDCWFB9he0u7yw6hPze4sNhDpStnCOPYLy2trMK6ZfAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:12.201706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005415
observed 40ce61304868f57ef0a26364cc45af0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:12.187922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005415/manifest.json
observed 9a2ae88acd69e32ebae3943a8a9a1634...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:12.173136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005415/publication.md
observed 983355229763f36ce004e8db370cda3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:12.160733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005415/publication.txt
observed 4a761b98e60d4cabb874a5bd9322c233...
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.