OpenTechnical

OT-2026-000005647

Publication integrity record

Vacuum cup gripper, four zone face, two outlet manifold, pump fed, 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-2026-000005647) never changes.

Identity and time

Publication numberOT-2026-000005647 · never reused
Internal UUID01a0a940-220a-7b1b-9d27-9d288ec3a2f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:05:47.662418Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005647
StatusPUBLIC

Content hashes

Canonical text2c6d566b4fb45e1dcf82f345d2669e383844b129c6ce028cd95160d9593863bb
Markdown88d885ca8032e0ce05151d87491f263e94ace663389b7345813b04540a8127b3
PDF
Publication pagee7af17805943f25dede5d5800539efc79683280f92b414d2b6bd679ac0185e7c
Manifest3656ef8451cddcc22eb622226763114f125971a63e76c71605e4433a0c486d0c

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
SignatureHGE9cPSirYXdVSdFzCc1meWx6Whw699Vm5y4PngHKtabVBqt1Yh8Z7dS7e+sxQVQzwvHV1gMJVADimOQuuwiAg==
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

2026-09-16T08:10:16.654719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005647
observed e7af17805943f25dede5d5800539efc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:16.640739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005647/manifest.json
observed 3656ef8451cddcc22eb622226763114f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:16.623369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005647/publication.md
observed 88d885ca8032e0ce05151d87491f263e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:16.498282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005647/publication.txt
observed 2c6d566b4fb45e1dcf82f345d2669e38...
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.