OpenTechnical

OT-2026-000015203

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, 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-2026-000015203) never changes.

Identity and time

Publication numberOT-2026-000015203 · never reused
Internal UUID01a0ae6d-ef48-777e-8a27-18df70bc97da · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015203
StatusPUBLIC

Content hashes

Canonical textb90db97f0679d1c198943ccf7516e4b23a91ef6995eaa0af903426d6a8eb11d7
Markdown099628ae2a79384219c7d93b03ddcdfe19a8573d49526174ac6d6a6d7ae39bfa
PDF
Publication page5fce281f1f6411500f06f1d22050b90f944c7c099ce5ac0dd916c27e3bab6974
Manifestf90f65029fe2d78739a2d0b0c7f83d9af601f832b393324c8976012943e78e9b

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
SignaturebaC6YowvB7TUDnvmfstdTr/NJwcHrfEHlnKhnDSphDJJa49mAoRnefigTvapT2XhLUPE0lZfFAJlXNK4zuyUCg==
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

2026-09-17T12:05:50.099320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015203
observed 5fce281f1f6411500f06f1d22050b90f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:50.081696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015203/manifest.json
observed f90f65029fe2d78739a2d0b0c7f83d9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:50.062857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015203/publication.md
observed 099628ae2a79384219c7d93b03ddcdfe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:50.042140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015203/publication.txt
observed b90db97f0679d1c198943ccf7516e4b2...
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.