OpenTechnical

OT-2026-000072685

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, single 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-2026-000072685) never changes.

Identity and time

Publication numberOT-2026-000072685 · never reused
Internal UUID01a0ae92-89d9-79cb-9f0d-7e90b50e5509 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072685
StatusPUBLIC

Content hashes

Canonical textb7f23b2ee7bba9b81ccd05a2e9b2b00c62c3dda997171a76a4d5170dbce347fb
Markdownb4f05473e0d2eccc99fe43cd2a258e529b00efaa86e60807b735f86c951d542d
PDF
Publication page8c1946f99a6ba79377b4c56a5f69ad273a4ac8ee70c1f88959125c5081d16819
Manifestca37281b061948766b044a180e116c905965d0a7d466d708baf72fa1f7d9077c

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
Signature0DZaB61fBx+AhGKowIoIal8iPD+KuFn32hHq4ATfDMPaFLL6REjj652d6MxYU4NN72oEsSfVQo1F4ovi2WulCg==
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

2026-09-17T10:22:33.320275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072685
observed 8c1946f99a6ba79377b4c56a5f69ad27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:33.305548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072685/manifest.json
observed ca37281b061948766b044a180e116c90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:33.289206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072685/publication.md
observed b4f05473e0d2eccc99fe43cd2a258e52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:33.272824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072685/publication.txt
observed b7f23b2ee7bba9b81ccd05a2e9b2b00c...
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.