OpenTechnical

OT-2026-000027487

Publication integrity record

Foam pad vacuum gripper, four zone face, single stage ejector, pulsed 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-2026-000027487) never changes.

Identity and time

Publication numberOT-2026-000027487 · never reused
Internal UUID01a0ae72-6998-74e1-bdd1-1880edeca9de · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027487
StatusPUBLIC

Content hashes

Canonical text93165fda0e4e8122cb0024d2eae88fc2f49afc2309a8359d6d9ae0157ab1867e
Markdowne57dc3db400184886e5dd243e371ae46a49716b810563fd20ee0da8f0e5a051c
PDF
Publication pageb83ba245983207c42d7e2c7016d34a5fa93f951f1d15bd6eefd05bf604c3d806
Manifestb8f2d3c3b8fe4f5b99ab5e378f5215556203082ee821e652b8fc3189751548a1

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
SignatureNSS+0SdCAYGD5jCW0RXrncV4Mf5QNnkR6hswO+GKzodLhjETyW6adAMRf2HRZ4ilwEtfu0KtUjyz32rfrVM+DA==
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

2026-09-17T11:42:57.174724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027487
observed b83ba245983207c42d7e2c7016d34a5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:57.153612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027487/manifest.json
observed b8f2d3c3b8fe4f5b99ab5e378f521555...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:57.134202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027487/publication.md
observed e57dc3db400184886e5dd243e371ae46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:57.114910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027487/publication.txt
observed 93165fda0e4e8122cb0024d2eae88fc2...
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.