OpenTechnical

OT-2026-000078685

Publication integrity record

Four bellows cup vacuum gripper, four 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-2026-000078685) never changes.

Identity and time

Publication numberOT-2026-000078685 · never reused
Internal UUID01a0ae95-ccbb-7585-92f8-5ac134e202e2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078685
StatusPUBLIC

Content hashes

Canonical text56fc866c1120d5e366f35c53edadd8a4f6d0cb831c229b49f3171295a8d91cae
Markdown9c885908188b53c017eacefb531584c5320e34ec2e3014425f27b3ce92740ad9
PDF
Publication page25551a8234af495606cefb069a7f7d972aec783aeeb132266409087388727d50
Manifest36dec3967b67d45da22e8dbfe7c5367111dc14a0645f7631341f5b9abfbd2ae9

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
Signaturehs2f5zchXgEvdn2PBBhfOPZ0UfkevwuHcILwBwBsFruowiPSexDRBjwnKVcHmmwDj93opetR7aDBsjwbl5KOCw==
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

2026-09-17T10:05:27.802726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078685
observed 25551a8234af495606cefb069a7f7d97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:27.785257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078685/manifest.json
observed 36dec3967b67d45da22e8dbfe7c53671...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:27.769166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078685/publication.md
observed 9c885908188b53c017eacefb531584c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:27.752873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078685/publication.txt
observed 56fc866c1120d5e366f35c53edadd8a4...
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.