OpenTechnical

OT-2026-000005136

Publication integrity record

Porous face vacuum gripper, four outlet manifold, plant vacuum 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-2026-000005136) never changes.

Identity and time

Publication numberOT-2026-000005136 · never reused
Internal UUID01a0a92f-0053-79d7-9361-e15c943ae737 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:47:04.919301Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005136
StatusPUBLIC

Content hashes

Canonical text03de20094893d79508409656f775c113b7179037f45c271911ae95e13fd69e21
Markdown5dfca9091f415d73fc0e5ef3e99bf631a144b68d26347feda4f3df0c2bb7ac62
PDF
Publication page794a232be5bd4eed64e358d38b9befa728791901d2fc71e906ba7363a857adff
Manifest9710a24d0f4335f4c18ccf5e87f2e45946ca5d0c7c08e6744d5e1c2235c4cb4d

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
SignatureOPUJPF2FCRBILVt41WaefffR2O5hGretzTnv7v1u15c0MKIR7Ifen6U3GiTZVKjurLc4uFkF3EYwvjvyA8RPCQ==
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

2026-09-16T07:50:11.622292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005136
observed 794a232be5bd4eed64e358d38b9befa7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:11.485976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005136/manifest.json
observed 9710a24d0f4335f4c18ccf5e87f2e459...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:11.472940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005136/publication.md
observed 5dfca9091f415d73fc0e5ef3e99bf631...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:11.456632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005136/publication.txt
observed 03de20094893d79508409656f775c113...
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.