OpenTechnical

OT-2026-000074105

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000074105) never changes.

Identity and time

Publication numberOT-2026-000074105 · never reused
Internal UUID01a0ae93-2b8f-73ab-bdf2-fdebed3e4860 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074105
StatusPUBLIC

Content hashes

Canonical text56fb0e5a0e74e22e8bf076581726a7ccc6ec1dd7327c1db348a0100761938bf5
Markdownd2772db7b1c1d81afa318639353ca2b8a78544a6e8d627165deb16d1f25371ac
PDF
Publication page5bc29d8d3aa412e483cd249ab12d87041ee5645ccac3132583633e986f05af78
Manifest4b843ae72a3e9cd45aa8f81b54818d1f95b6bae0a7d9b8f6e9de08ccd997b760

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
SignaturejasnW+MXmS0PyzykVll2Lns8UNUx8QRbRk6eu6UxS6BAcAQzwKg4v4PoReZYcze4UOiMDG69BGr9yjvA9D2+BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:21:00.989469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074105
observed 5bc29d8d3aa412e483cd249ab12d8704...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:00.968619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074105/manifest.json
observed 4b843ae72a3e9cd45aa8f81b54818d1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:00.949731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074105/publication.md
observed d2772db7b1c1d81afa318639353ca2b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:00.928755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074105/publication.txt
observed 56fb0e5a0e74e22e8bf076581726a7cc...
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.