OpenTechnical

OT-2026-000069708

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented before set-down, on a tool changer

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-2026-000069708) never changes.

Identity and time

Publication numberOT-2026-000069708 · never reused
Internal UUID01a0ae90-b52c-71d9-b0dd-fe818c4dbbf7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:54.310022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069708
StatusPUBLIC

Content hashes

Canonical text9d8a55f33a01267410cef681510d1e2540c43af1808e2beaf778d612473a0361
Markdown75cb0846077019ba4e2559867fb81b55851a835f95b5c87f4ac09c221d81eeb6
PDF
Publication page54398c9f7dbac9320e7a6ef90fdc90eccdebf986cf8018c9f4d0aad755bae3fe
Manifestd0065e9ee1d9f24c230384e6e8059e75b0dc520c6f46fda8d36b1934e7534ecd

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
SignatureJU9MrKsf2dUMIGR+HsE2RKRofKGu/VErqCnZc6eaQZnaavCXYNqgq4ExC23cxC3gc9sj1MEZ9Qqno9eTT8miCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:28:28.545145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069708
observed 54398c9f7dbac9320e7a6ef90fdc90ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:28.525719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069708/manifest.json
observed d0065e9ee1d9f24c230384e6e8059e75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:28.506459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069708/publication.md
observed 75cb0846077019ba4e2559867fb81b55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:28.486811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069708/publication.txt
observed 9d8a55f33a01267410cef681510d1e25...
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.