OpenTechnical

OT-2026-000006761

Publication integrity record

Bellows cup vacuum gripper, two stage ejector, pressure verified, contact triggered

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-2026-000006761) never changes.

Identity and time

Publication numberOT-2026-000006761 · never reused
Internal UUID01a0a966-829c-7e7a-adda-3c93b9b560ae · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:47:42.750985Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006761
StatusPUBLIC

Content hashes

Canonical text8b1adac81e87b1ac074d8fc0f90419e324ea94c36b46595c092dd907457b7c09
Markdownb7a67392db7a9ce1e5600cbd20b7321649901258ff1652d0000b4949e05a7b38
PDF
Publication pagea15b4a69f4283817d23864d531f44ca843df65b273b8c979906be68a9854c8d7
Manifest4d90aef880fa7b72e60c96ef301dfeac4bc6a583485f64708e48765391f4a7d8

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
SignatureHQ1V+N3ZJlShdD6KInlOQULSpEB1W6X8129escjmDwpNE5BI8aCPxjwfX61vwnL86rr6VCO9ZXJZgzfUmHZzCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T08:50:09.231542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006761
observed a15b4a69f4283817d23864d531f44ca8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:09.218484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006761/manifest.json
observed 4d90aef880fa7b72e60c96ef301dfeac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:09.203513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006761/publication.md
observed b7a67392db7a9ce1e5600cbd20b73216...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:09.190049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006761/publication.txt
observed 8b1adac81e87b1ac074d8fc0f90419e3...
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.