OpenTechnical

OT-2026-000087886

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, two stage ejector, supply line pressure sensor, sustained 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-2026-000087886) never changes.

Identity and time

Publication numberOT-2026-000087886 · never reused
Internal UUID01a0ae9b-1aa5-73ea-a680-904afcc35b39 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087886
StatusPUBLIC

Content hashes

Canonical text8f0587b5fe7ec8d0b31adb3a163f28be6594aeb67acc48819133247eceddbaca
Markdown7d0fad0c7d3cc9b83d8e536ec1f38f61b3592e6653c025338e3b482a3bd1df5f
PDF
Publication pageefa535e62bf9656b17d6d3e96c1e3ecbf498b5713d827fd61f2e49a0f7c92b4e
Manifest83c0289def004f8ed89b98f30b398a39d4810602888882f2a2a0b79d874c6956

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
SignatureO+tmzbERQ9H8Bq0bLk/rghDnBdITRMnp7iC90FFyC1PcEfxURT8NNH+vvXIhiweo+CSeq3dzRx0PEDvw+eHqBQ==
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

2026-09-17T09:49:09.347679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087886
observed efa535e62bf9656b17d6d3e96c1e3ecb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:09.327748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087886/manifest.json
observed 83c0289def004f8ed89b98f30b398a39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:09.306516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087886/publication.md
observed 7d0fad0c7d3cc9b83d8e536ec1f38f61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:09.288405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087886/publication.txt
observed 8f0587b5fe7ec8d0b31adb3a163f28be...
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.