OpenTechnical

OT-2026-000006397

Publication integrity record

Porous face vacuum gripper, per zone isolation, pump fed, pressure verified, vented before 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-2026-000006397) never changes.

Identity and time

Publication numberOT-2026-000006397 · never reused
Internal UUID01a0a959-98ea-797c-83c1-546b9fc0e798 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:33:36.495786Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006397
StatusPUBLIC

Content hashes

Canonical text3d47a30c4477dc756237e3a9bf380c66cfaeeb79911ee80b656c8b431c67cb45
Markdown4b741f12e4a25f8dde81cdb832f7951847affa70d57893bb391e4bf0d624002a
PDF
Publication page28cb1d89ec11bdacb9388275a2b6b5df73b747d1c57fbeb6d0c833c0472c8134
Manifest524e40019dcb48375e12eb7188a280f3c8d2b20aa834b7434a39161cc164352c

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
SignatureX92AUaQqcDPYGhJLXiexdmNhgc/LLNtQQqWhlYCCuytw8DroWqVdNKOQ7EYidsra0zblCpBoIRwCo3u9XpotCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:22.230409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006397
observed 28cb1d89ec11bdacb9388275a2b6b5df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:22.165573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006397/manifest.json
observed 524e40019dcb48375e12eb7188a280f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:22.154746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006397/publication.md
observed 4b741f12e4a25f8dde81cdb832f79518...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:22.143028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006397/publication.txt
observed 3d47a30c4477dc756237e3a9bf380c66...
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.