OpenTechnical

OT-2026-000006107

Publication integrity record

Vacuum cup gripper, per zone isolation, pump fed, contact triggered, 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-2026-000006107) never changes.

Identity and time

Publication numberOT-2026-000006107 · never reused
Internal UUID01a0a94f-8d8a-7179-9fbe-64e060c148bd · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:22:38.220320Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006107
StatusPUBLIC

Content hashes

Canonical text4f7aedb73ff1d81cef5e51f7f2f06af2a4f75d198dcf37badb1cc24d00bb509b
Markdown367ff730b0fdcc042ac10ec57d69f515302969598155c6bed027a194dc94f318
PDF
Publication page2fc1c109fce3156afafe64425fa2a7ed6b8704055a3b5beffd112b1cc791d099
Manifestbd29a6f52b03cff072fa8caae4ad6206fb31d72bceca3d47d711ca8fdad82969

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
SignatureOuSv+3W90hTlnf+it/gojZqb/EkZqPzVLVA3nw9You08IsYAaEpyTsK9OIPx8D4ChDGIpGQjA9pw49F7DUO5CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:26.688546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006107
observed 2fc1c109fce3156afafe64425fa2a7ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:26.674579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006107/manifest.json
observed bd29a6f52b03cff072fa8caae4ad6206...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:26.662093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006107/publication.md
observed 367ff730b0fdcc042ac10ec57d69f515...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:26.647653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006107/publication.txt
observed 4f7aedb73ff1d81cef5e51f7f2f06af2...
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.