OpenTechnical

OT-2026-000012639

Publication integrity record

Foam pad vacuum gripper, four zone face, three stage ejector, pulsed blow-off before set-down

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-2026-000012639) never changes.

Identity and time

Publication numberOT-2026-000012639 · never reused
Internal UUID01a0ae6d-5561-7d2c-85d7-9909ce1fc611 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012639
StatusPUBLIC

Content hashes

Canonical textf2ec27b3686c6d0e6ff8ece8366071eb346dfe6e925c98c2b20a5df28759a4f9
Markdown67ab97285d24d8359b670e6f533d62c17afd3f1a0d8744d951412ff7a5659cae
PDF
Publication pageec0dda1f3cedb35078c50e1239145117fe0a19982b87353b1ab47376397a019d
Manifest452dd426fce540cfc5d0a983ec025c2e2d3bb2d1bcbeb2eb34b5b30f0cbb041b

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
SignatureWhUR5+AbGwLNDLqKqG9YkMixts8Or2/1eGJGVq+JpHMPee7rRX95gmRU/Y1uJ61TGH3Z2e/YcCcX/x3wGRrWCw==
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

2026-09-17T12:10:16.190273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012639
observed ec0dda1f3cedb35078c50e1239145117...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:16.167951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012639/manifest.json
observed 452dd426fce540cfc5d0a983ec025c2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:16.149024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012639/publication.md
observed 67ab97285d24d8359b670e6f533d62c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:16.129800ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012639/publication.txt
observed f2ec27b3686c6d0e6ff8ece8366071eb...
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.