OpenTechnical

OT-2026-000048515

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000048515) never changes.

Identity and time

Publication numberOT-2026-000048515 · never reused
Internal UUID01a0ae80-4de6-7b01-a0b3-de8c78bc1727 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048515
StatusPUBLIC

Content hashes

Canonical text9112bc7f2887faf6e6e0c2b8d0a0d08dbda5c311e36291cc369e3fa23c2e78e6
Markdown04b77d40f75f222394f267ef6cf80a60b4cc87ccadf543129b72d97e05057786
PDF
Publication page5d4c511d45176b16dab17367fdb086c6587f441ac25cc6fbaf39587640e56942
Manifest50545b6f5e8c66e0a1f8c72c0b7f42076d465351c02ad474b6ddbf80bc2ffe78

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
SignatureBDSWm8F6lybptjfl4QFxfED/7/E6qZakHOX8MRmfP4P0HTq57+h+q5lJzaZSEE1PhWv3LxOPSRMC6PIcj/vEAg==
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

2026-09-17T11:05:11.643752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048515
observed 5d4c511d45176b16dab17367fdb086c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:11.624636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048515/manifest.json
observed 50545b6f5e8c66e0a1f8c72c0b7f4207...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:11.603707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048515/publication.md
observed 04b77d40f75f222394f267ef6cf80a60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:11.577903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048515/publication.txt
observed 9112bc7f2887faf6e6e0c2b8d0a0d08d...
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.