OpenTechnical

OT-2026-000040801

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, sustained blow-off after 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-2026-000040801) never changes.

Identity and time

Publication numberOT-2026-000040801 · never reused
Internal UUID01a0ae79-6d0f-735b-a1d7-16e9ac5b8599 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:28.516236Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000040801
StatusPUBLIC

Content hashes

Canonical textc4e4bbcef267e39bf415e429e0a4f422bba87f9e39c1119abc76c829c945b89c
Markdown5c67825eb35bb0d0595d7080480c14b84f8530e63c849e0cb2fed425f9207b65
PDF
Publication page98602a4370e365cd778ce95e8635d41c81a4c14f7904920d6a7b7efe940edae8
Manifest9b363be06eb74f3042d8a4be20c5bd16ac59e07677b2e36fbf85a9c54cb8790d

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
SignatureTNm1NBre/Hp42+avvOfSiHKfc5u8QHYOPufnDOwRXgHrKnKuUUI/3yibr0ViE+0XatgiBlUBQrGTw8NjVWIjCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:42:49.842042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801
observed 98602a4370e365cd778ce95e8635d41c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:42:49.405643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801/manifest.json
observed 9b363be06eb74f3042d8a4be20c5bd16...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:42:49.066913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801/publication.md
observed 5c67825eb35bb0d0595d7080480c14b8...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:42:48.747363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801/publication.txt
observed c4e4bbcef267e39bf415e429e0a4f422...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T11:20:08.350170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801
observed 98602a4370e365cd778ce95e8635d41c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:20:08.328565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801/manifest.json
observed 9b363be06eb74f3042d8a4be20c5bd16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:20:08.305816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801/publication.md
observed 5c67825eb35bb0d0595d7080480c14b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:20:08.287425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040801/publication.txt
observed c4e4bbcef267e39bf415e429e0a4f422...
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.