OpenTechnical

OT-2026-000070993

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000070993) never changes.

Identity and time

Publication numberOT-2026-000070993 · never reused
Internal UUID01a0ae91-8c2e-74df-91d0-4220fa529dcf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070993
StatusPUBLIC

Content hashes

Canonical text2a3832f32afef38230187fd2826bd28a5ef29f67f17b48180ca1fc21299366eb
Markdown71b9a264e0712d9c07bb11e70730bba8f4a0632ad6eb56dfbeeb97c9e1bd3886
PDF
Publication page9d3b18e6ce37635b79c080a7202dcc69d9cd1927c5460d178f723e1151ebf251
Manifest121b7654040194f7afc8497db387ba397a6bf22a8866c0d51de532ced5d67e8c

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
Signaturen53R8qB0lR0SKw+OAVILs1vrc5bFLKE0z7IVjO/x6wh7aeFskLYC9a4EQkvwC112SsZvq6JqWBpdEop2ggxGAA==
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

2026-09-17T10:25:50.272944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070993
observed 9d3b18e6ce37635b79c080a7202dcc69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:50.257921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070993/manifest.json
observed 121b7654040194f7afc8497db387ba39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:50.242612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070993/publication.md
observed 71b9a264e0712d9c07bb11e70730bba8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:50.225698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070993/publication.txt
observed 2a3832f32afef38230187fd2826bd28a...
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.