OpenTechnical

OT-2026-000040505

Publication integrity record

Single cup vacuum gripper, pump fed, sustained 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-2026-000040505) never changes.

Identity and time

Publication numberOT-2026-000040505 · never reused
Internal UUID01a0ae79-6d0d-71a8-a211-f4b9df1a14cb · 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-2026-000040505
StatusPUBLIC

Content hashes

Canonical textefd4e4e24994767a0df0286f5f9512eaf3c0aaf7d539e2ed607e3fe4592718e9
Markdown547dda663baa29a2e22c7b3f282631cb42f513d22417b940af25501cc257c5c7
PDF
Publication pagee76b1969d1631933ea687cfb7919f1c620b30d33a2fd6e3332972fed9d6ce109
Manifest99f6edf1fb7052d04cca06f8cef082f8c3d302de5fbdca014577557fba432e1f

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
SignatureO8HV6i8N1zjqCN60MNNYa4VGtYK22HaQnE5QOskj79tF9xnp7nSkdOKohwz3sXpKos3seDXh3tqiG+jWoFO2BA==
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

2026-09-17T11:17:33.148139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040505
observed e76b1969d1631933ea687cfb7919f1c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:33.132167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040505/manifest.json
observed 99f6edf1fb7052d04cca06f8cef082f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:33.115749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040505/publication.md
observed 547dda663baa29a2e22c7b3f282631cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:33.099102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040505/publication.txt
observed efd4e4e24994767a0df0286f5f9512ea...
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.