OpenTechnical

OT-2026-000078479

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000078479) never changes.

Identity and time

Publication numberOT-2026-000078479 · never reused
Internal UUID01a0ae95-7c28-77cd-8807-e90c28dbaf29 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078479
StatusPUBLIC

Content hashes

Canonical text31153d07d4ec38070be3744bf10fa9170acb09450df8f9cd1c14c0a9985a26cd
Markdownaf82be16f51114cfba386e687261bac3c9c40eb2ea5be1dc0972e35970aba0cd
PDF
Publication page8185e749e32d0bcf1d8f4d0187d5d01d45fdf379755aed852c82e5cb5120c2aa
Manifestcf213d05ea8f88aceb17cad81cfba9167af14a8d29c5c211081efa5233b2a992

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
SignatureGFtmHxqJ585AkflvH9QRSRdCsOaDLumvdkiHu4drBKVIx/3cOSle+TxckSRJ026oe6Fy/XpUyKU4uMfzKp6OCg==
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

2026-09-17T10:06:29.306948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078479
observed 8185e749e32d0bcf1d8f4d0187d5d01d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:29.287438ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078479/manifest.json
observed cf213d05ea8f88aceb17cad81cfba916...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:29.267600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078479/publication.md
observed af82be16f51114cfba386e687261bac3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:29.249665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078479/publication.txt
observed 31153d07d4ec38070be3744bf10fa917...
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.