OpenTechnical

OT-2026-000080047

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, sustained 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-2026-000080047) never changes.

Identity and time

Publication numberOT-2026-000080047 · never reused
Internal UUID01a0ae96-4377-7076-a3f1-bdb71693a5fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080047
StatusPUBLIC

Content hashes

Canonical text024b165612c3c2c8568a62491dbb62b9ef656ab41aabfea6b027da906795d284
Markdown588214e3536f0533ac7d32c85fecfb3632fad03fec3522dfbad10fd4dc74de68
PDF
Publication paged3d21178092ff2b0aa4aba81e4e7add5a922a26243611a33ba14d9f35f95b910
Manifest14a7ff8aa2c745e5c19e3e182bf7eab0fe7833493579c083a15c3b7fcfa4cc7c

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
Signature1c2JKCfrJG8IO0NVuZw4eYWeehp82HS1faDrA0wbpuZJD3pNXmMK2bA8kHPZqCfEqxSptSgQoJOIOVnFV1kPBQ==
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

2026-09-17T10:03:58.525823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080047
observed d3d21178092ff2b0aa4aba81e4e7add5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:58.508635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080047/manifest.json
observed 14a7ff8aa2c745e5c19e3e182bf7eab0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:58.489535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080047/publication.md
observed 588214e3536f0533ac7d32c85fecfb36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:58.470227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080047/publication.txt
observed 024b165612c3c2c8568a62491dbb62b9...
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.