OpenTechnical

OT-2026-000076147

Publication integrity record

Four cup vacuum gripper, four zone face, 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-2026-000076147) never changes.

Identity and time

Publication numberOT-2026-000076147 · never reused
Internal UUID01a0ae94-6a6f-76b8-b704-20d82626bd63 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076147
StatusPUBLIC

Content hashes

Canonical textf936c225eda8733eefdc6601dcf75f8887244063598b24cbd0feab019de70df5
Markdownada3458d3fb40cebe0bdf665b3fcfea7264bc40545c58227c917563d6fdad058
PDF
Publication page3f53e0153a36bde31c4860a0201dbfb07aa51e6d76f845abaa315a96e9654190
Manifesteb94eec7655b354caf494d57b6e4ae5480bbc8d2709f3ada9a5028663b25772c

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
SignaturejVmMED9J1+TOwRlq0RfjgvfqK8QlY3ijs/lHfXmvgaIQPUoQ+xpe+RMAe7KFvxz1tb7p4a8p2+4Ri7+zZ3S+Bg==
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

2026-09-17T10:11:11.953425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076147
observed 3f53e0153a36bde31c4860a0201dbfb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:11.813290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076147/manifest.json
observed eb94eec7655b354caf494d57b6e4ae54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:11.791774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076147/publication.md
observed ada3458d3fb40cebe0bdf665b3fcfea7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:11.773888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076147/publication.txt
observed f936c225eda8733eefdc6601dcf75f88...
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.