OpenTechnical

OT-2026-000055975

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, three stage ejector, supply line pressure sensor, 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-2026-000055975) never changes.

Identity and time

Publication numberOT-2026-000055975 · never reused
Internal UUID01a0ae87-0a4a-76c3-97c8-305ab9a79b3d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055975
StatusPUBLIC

Content hashes

Canonical text28ae6f881124014591facc1e1a101fc493c796e4071a693ce7090db1f47a6f87
Markdownc1446be2198ff1f00d47d72539762255c8682b8e42e7935e2408ec6e1568c85e
PDF
Publication page0335bfa8f97ac277c9fdc4f0a8d700d7a510176903116b3e7998b097e64d368a
Manifeste0fcb11e4b4e3d61027daffc5c2d4d47950b0c3bfbf6b251865be193ffda99ee

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
SignatureMVTIjWrYjKtb6nIpjPvnoH5H6JgXT0vaMvn6WwgXnro1g4KvmZzltQLuBNPqWwTIVJRdPdLnDuzvwXq1FBw5Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:29.819435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055975
observed 0335bfa8f97ac277c9fdc4f0a8d700d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:29.802045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055975/manifest.json
observed e0fcb11e4b4e3d61027daffc5c2d4d47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:29.782703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055975/publication.md
observed c1446be2198ff1f00d47d72539762255...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:29.765807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055975/publication.txt
observed 28ae6f881124014591facc1e1a101fc4...
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.