OpenTechnical

OT-2026-000044732

Publication integrity record

Single bellows cup vacuum gripper, pump fed, pulsed blow-off after 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-2026-000044732) never changes.

Identity and time

Publication numberOT-2026-000044732 · never reused
Internal UUID01a0ae7c-911a-7040-a7dd-505bf7583b56 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:54.474009Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000044732
StatusPUBLIC

Content hashes

Canonical text605d341c93a8f9ad43ba8edce12fbeb3f62b6da4969b66d4ff12d53e2c1f70e8
Markdown61ab799eaee16b313fe6afffa846b1ad544c39f4b2b00b50e1cac7adab79199c
PDF
Publication page167a4e99fcdb415264bd39ea09f12c5fa2871cf3704934bb2c2be38e055ea07a
Manifest89de31413dfbf5b2cdc22c7e13f50d9cb886f33e98697109051a55cf6381154d

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
Signature+lert2pE002ys9oxnZ3fersagZ+3VQsJ4YOYgz3/YIeDuh5xuKHb5OSTRSmBfsTI2/MxCNynJYfqUxNfBMa3DA==
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

2026-09-17T11:11:20.486933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044732
observed 167a4e99fcdb415264bd39ea09f12c5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:20.468127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044732/manifest.json
observed 89de31413dfbf5b2cdc22c7e13f50d9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:20.431175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044732/publication.md
observed 61ab799eaee16b313fe6afffa846b1ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:20.345968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044732/publication.txt
observed 605d341c93a8f9ad43ba8edce12fbeb3...
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.