OpenTechnical

OT-2026-000007358

Publication integrity record

Bellows cup vacuum gripper, pump fed, pressure verified at each zone, vented after 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-2026-000007358) never changes.

Identity and time

Publication numberOT-2026-000007358 · never reused
Internal UUID01a0a97b-f7ad-71df-bbe6-3b723df47b4f · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:11:08.975966Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007358
StatusPUBLIC

Content hashes

Canonical textafd069ba47684ad297ca98ec69981340c3ba12628f6526a50bb6d21889722c67
Markdown6cb8950075442b1c843b1f77d854aa20c27cec99f1cbd28d40c5326a58fdb28e
PDF
Publication pageb90161d590b6eb8b0e08c170c17340c64e8e5067b6d75b0054b97020d08c421b
Manifestd40ce7facd15e7f443292cad6ad1ca95519b90fcba36d954cd48a6c97da4d210

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
SignatureRGZCEW1qJFf3FSYZdM4ookfLOvknBO1jvKujfAC45sXd1pNuCQrNn74Ym0y7f+EgGvrG+ruE6JRlF6d3bh96AA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T16:41:55.430337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358
observed b90161d590b6eb8b0e08c170c17340c6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:55.351405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358/manifest.json
observed d40ce7facd15e7f443292cad6ad1ca95...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:55.247838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358/publication.md
observed 6cb8950075442b1c843b1f77d854aa20...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T16:41:55.118045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358/publication.txt
observed afd069ba47684ad297ca98ec69981340...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T09:20:09.829684ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358
observed b90161d590b6eb8b0e08c170c17340c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:09.818230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358/manifest.json
observed d40ce7facd15e7f443292cad6ad1ca95...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:09.805518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358/publication.md
observed 6cb8950075442b1c843b1f77d854aa20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:09.792276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007358/publication.txt
observed afd069ba47684ad297ca98ec69981340...
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.