OpenTechnical

OT-2026-000080309

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, sustained 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-2026-000080309) never changes.

Identity and time

Publication numberOT-2026-000080309 · never reused
Internal UUID01a0ae96-7e77-7210-a85d-1ed5dae8c94a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080309
StatusPUBLIC

Content hashes

Canonical textadc5307f15ff0fb94cec801f951b61016fc0aa085ff92a1001ca7921930e7adf
Markdown62cd9a0df13ebcf294b4735a0aea4cfd6b6e273d63960f58dec9576fcfd5977c
PDF
Publication page394f6ea7957ef8c35bd4537c633f367cde3c870379572cfa808c1c99623dbcd2
Manifest54018d1af16b55c50337a539fb5fde94bd5fc5daa5b30b99550cbd931943b47a

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
SignaturetWZzQ5sSKyub/lSMNmZoYBFQwMPy9/ixwCMtfbz1RDeS35AkDhOArNk61ctEncV0cNzSnaD4TS4DYBKo/uIzBg==
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

2026-09-17T10:02:46.649848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080309
observed 394f6ea7957ef8c35bd4537c633f367c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:46.631908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080309/manifest.json
observed 54018d1af16b55c50337a539fb5fde94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:46.611851ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080309/publication.md
observed 62cd9a0df13ebcf294b4735a0aea4cfd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:46.591795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080309/publication.txt
observed adc5307f15ff0fb94cec801f951b6101...
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.