OpenTechnical

OT-2026-000003706

Publication integrity record

Bellows cup vacuum gripper, two zone face, pump fed, pressure verified

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-2026-000003706) never changes.

Identity and time

Publication numberOT-2026-000003706 · never reused
Internal UUID01a0a90a-cd1e-7106-808d-fc18d7544d2a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:32.512809Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003706
StatusPUBLIC

Content hashes

Canonical text662f329ffa46536d71b028fb50b8bc6ebf7a21a2d24a8152f5d8c5a0a7d5b3be
Markdowne61b7e131b75a9d0193f0b5001d48430ede4ef4bbab0c091cf504470b8a995c7
PDF
Publication pageede969a106420005d150a5eefaf1b265644ec61a6d3393ae2c4cb122f0d950c2
Manifest590a842480af7aca39438f85945ad41a3e4b7e4aa9b43078d5a9b54f00678cd6

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
Signature6MvwbWAdfeVQUJ8OKIZYIlVI+TCmB6iBDpFjW7nMQ8693PTDWo5YOP3XNgO7rx1bsA8rTz666ajeQg42Uke9CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T08:00:36.204507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003706
observed ede969a106420005d150a5eefaf1b265...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:36.189128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003706/manifest.json
observed 590a842480af7aca39438f85945ad41a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:36.174799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003706/publication.md
observed e61b7e131b75a9d0193f0b5001d48430...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:36.157443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003706/publication.txt
observed 662f329ffa46536d71b028fb50b8bc6e...
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.