OpenTechnical

OT-2026-000090342

Publication integrity record

Three bellows cup vacuum gripper, three zone face, single stage ejector, pressure sensor per zone, 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-2026-000090342) never changes.

Identity and time

Publication numberOT-2026-000090342 · never reused
Internal UUID01a0ae9c-7f2c-7453-96cc-eacb8f823818 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090342
StatusPUBLIC

Content hashes

Canonical textda35ffb89408a3feb9d78e4204c3a9f3a08d9cebb04e4f336ed0b840be633bdf
Markdown57f69caed3d37cd41ff1ae3bc145c4ce5b5859d3c05551df4ec42b5b2d1e9559
PDF
Publication page6ea3139d9467bb132fe3adb9d0685f277b2e875b097fe40b403b2a5bb5473c68
Manifestd1b4fb049fc1f14e814dff33c826a22b828783cfc181be0e37ff7fa97807a145

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
SignatureHAdB3Pg7z2bOhwuX2alxMEgaTf/7Rtj+YVsrXskGFGjsr3zpDjleqj9wHjvzkBAvnAQDLC4VbSFmF3bWm/enDg==
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

2026-09-17T09:44:26.148233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090342
observed 6ea3139d9467bb132fe3adb9d0685f27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.128721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090342/manifest.json
observed d1b4fb049fc1f14e814dff33c826a22b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.110759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090342/publication.md
observed 57f69caed3d37cd41ff1ae3bc145c4ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.091550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090342/publication.txt
observed da35ffb89408a3feb9d78e4204c3a9f3...
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.