OpenTechnical

OT-2026-000069714

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, 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-2026-000069714) never changes.

Identity and time

Publication numberOT-2026-000069714 · never reused
Internal UUID01a0ae90-b52c-7ced-9bb2-9d86ad296333 · 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-2026-000069714
StatusPUBLIC

Content hashes

Canonical text32f7bbf17b2a77890d4bf814ad710933d1320772255918a0ebe6e0bfb9bbf2cb
Markdown1642b9a9631704214bb9781a54c666d773a62131ec217bd145fbe2b728708225
PDF
Publication page9e482a31cf820a87d1bcebd3efcfde05c8c863b1e450b2faea6f7633c00ba73a
Manifest4e18de416cf9db5efdd8094691aee163b4e71ff40692eb824eb08c2be4ab4003

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
SignaturesT2MO8SadTL4kRMkB61tc1jbeEM9/CNW71zdgP6FksyoV5Ip6EZB0AlpMvwj37xdgqehNCSUZ/ULnJCI9NUqCw==
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

2026-09-17T10:28:28.998961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069714
observed 9e482a31cf820a87d1bcebd3efcfde05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:28.980643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069714/manifest.json
observed 4e18de416cf9db5efdd8094691aee163...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:28.963754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069714/publication.md
observed 1642b9a9631704214bb9781a54c666d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:28.945773ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069714/publication.txt
observed 32f7bbf17b2a77890d4bf814ad710933...
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.