OpenTechnical

OT-2026-000077831

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, 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-2026-000077831) never changes.

Identity and time

Publication numberOT-2026-000077831 · never reused
Internal UUID01a0ae95-2ed0-777c-b63c-a62ced6ff967 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077831
StatusPUBLIC

Content hashes

Canonical texteff9a39f8058a2ea0438875a930ce39b4eda359e4520343ec242d60200ba6719
Markdown8ea65dde280df87648cce2fe9d556bab4c10fe4492578554f08275f4bcafa2bc
PDF
Publication page52fea9a0d5dbf5197999ebde054cfead005c09948963072b2cba1af23c0a7978
Manifest44d5de7fcd9cd4e71e149054c96e7811e986bb80ac930b30c035b95f8e84d7f7

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
SignaturexxgLs5SWM+yFhhXTgcQjTbWHTEAYn2/0ypbU+PmjAlm+/KUbvO0OFrem3Nrf3o5AKd/yKjxkjhwmKQnnzh0xDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:07:25.707758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077831
observed 52fea9a0d5dbf5197999ebde054cfead...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:25.688440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077831/manifest.json
observed 44d5de7fcd9cd4e71e149054c96e7811...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:25.668938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077831/publication.md
observed 8ea65dde280df87648cce2fe9d556bab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:25.649448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077831/publication.txt
observed eff9a39f8058a2ea0438875a930ce39b...
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.