OpenTechnical

OT-2026-000004918

Publication integrity record

Porous face vacuum gripper, three outlet manifold, two stage ejector

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-2026-000004918) never changes.

Identity and time

Publication numberOT-2026-000004918 · never reused
Internal UUID01a0a927-c695-7c76-ab45-a739b2f23954 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:39:11.385272Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004918
StatusPUBLIC

Content hashes

Canonical textd7d26a665e7fef11db774103baf74b725ef6bdab540516fc90e85ee75d7a8ab8
Markdown71b69e3d761aaf024fdf192affa0b0bd663ab4d23aff5e248b14de0436df59fb
PDF
Publication page51e649eaf7108269cf539686a918599b95d1a226f6db8fe4040de22338d1234e
Manifest2cca69853805292d8402bba45638ac083a2f9cc3f116db02112c18006ea74385

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
Signaturec0nsTGxhGixeqIIlFf2L8xu+Bh4rzTaMAjNW9XN91L+O9I+YRh+PcNxFoIbU/jXD5l3e9QeTIjbNSKNcyzZzCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:04.886376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004918
observed 51e649eaf7108269cf539686a918599b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:04.871986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004918/manifest.json
observed 2cca69853805292d8402bba45638ac08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:04.734750ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004918/publication.md
observed 71b69e3d761aaf024fdf192affa0b0bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:04.722850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004918/publication.txt
observed d7d26a665e7fef11db774103baf74b72...
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.