OpenTechnical

OT-2026-000083405

Publication integrity record

Foam pad vacuum gripper, three zone face, plant vacuum fed, sustained blow-off 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-2026-000083405) never changes.

Identity and time

Publication numberOT-2026-000083405 · never reused
Internal UUID01a0ae97-c964-775a-b626-da8f02cb987c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083405
StatusPUBLIC

Content hashes

Canonical texta7df555d16e5bca4c21c75257882a629236922abd54c5aaf64d6fb833fc67318
Markdown074ff72c09a425f9a313b05e0802bdde6bccf0a05f7a6fa2b3da30f40e28634d
PDF
Publication page25b2107ee13c787655383691a6b7db87633899df7023a2535fed780956300470
Manifestb8052610768cc4b23bc359efc5cd63fa1a058f946fcec76f37a97618aaaffa00

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
SignaturetNqqU7Znt/qDHlQ30q/fuvLhpbRwTCgEOEoLU1gXnfrZ6FfksIFIRq42RMIuO3rMNx9Z2uGAy7HfOUF0s3JoCQ==
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

2026-09-17T09:57:49.007939ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083405
observed 25b2107ee13c787655383691a6b7db87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:48.991382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083405/manifest.json
observed b8052610768cc4b23bc359efc5cd63fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:48.974542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083405/publication.md
observed 074ff72c09a425f9a313b05e0802bdde...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:48.954261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083405/publication.txt
observed a7df555d16e5bca4c21c75257882a629...
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.