OpenTechnical

OT-2026-000006339

Publication integrity record

Vacuum cup gripper, four zone face, plant vacuum fed, pulsed blow off 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-2026-000006339) never changes.

Identity and time

Publication numberOT-2026-000006339 · never reused
Internal UUID01a0a957-8e44-77cc-b31b-dc9ae43598d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:31:22.695913Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006339
StatusPUBLIC

Content hashes

Canonical text7733ddc6639db90121dcc64ddc1fc8ca10bfcee121fd5dfb3eba80375b810350
Markdown070d4c7bd3934852245265baa046369b4c5ffaab299f1de992d52522398d7954
PDF
Publication paged49600113eba0cc1876cadb74ed743709ce4dd6d5f65a9d0ac0913bcf0faf956
Manifest4d68dc3ca2593e22a43a99c175992cd2c39a094953d271ebfb04010696db35f3

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
SignatureQbnLr+kHvFqWZejRBe9Ss4qUztH773XuR5Xgy14O27xgqC3WRtRD0TERoN0GdlzfwSEZwryr9BTjOmSbeAxjDA==
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

2026-09-16T08:40:29.472686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006339
observed d49600113eba0cc1876cadb74ed74370...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:29.459352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006339/manifest.json
observed 4d68dc3ca2593e22a43a99c175992cd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:29.444876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006339/publication.md
observed 070d4c7bd3934852245265baa046369b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:29.432177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006339/publication.txt
observed 7733ddc6639db90121dcc64ddc1fc8ca...
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.