OpenTechnical

OT-2026-000006406

Publication integrity record

Bellows cup vacuum gripper, two stage ejector, pressure verified, 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-2026-000006406) never changes.

Identity and time

Publication numberOT-2026-000006406 · never reused
Internal UUID01a0a95a-243f-7e0d-a11d-b41a93e09baa · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:34:12.163345Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006406
StatusPUBLIC

Content hashes

Canonical textd7861dad16871e898b515a1e175d947906d3211cc3954dd8b67f3749e7f7b740
Markdown591c10c196f90f8a778ecd7ccbe240f242436d91418806142c11f20a59dee434
PDF
Publication page74f8ea148dcd6bf7c7444d8c2604b40c290bd2652f580fe1af3c183cd3c1bd20
Manifest27210fedb6ad954bc9d881c38df493ab3ecf3964916d66645fcb5faf760ccde3

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
SignatureGcwZKtAxxrqhUi49Uh9g2CUpZhHExQxpCBb3WXuFrouoYHX959e+cDUI1nLt6aNsuEw9Xm5jeKZ0EzxkioIpCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:21.186921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006406
observed 74f8ea148dcd6bf7c7444d8c2604b40c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:21.173757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006406/manifest.json
observed 27210fedb6ad954bc9d881c38df493ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:21.160280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006406/publication.md
observed 591c10c196f90f8a778ecd7ccbe240f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:21.147181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006406/publication.txt
observed d7861dad16871e898b515a1e175d9479...
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.