OpenTechnical

OT-2026-000076631

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, 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-2026-000076631) never changes.

Identity and time

Publication numberOT-2026-000076631 · never reused
Internal UUID01a0ae94-b06e-7845-9a8f-6104b09f2e1c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076631
StatusPUBLIC

Content hashes

Canonical textbc24015c0b71d6a8d58393083e50631e9b221ffb3c0a1ea1018e3803fff5a240
Markdown40915f8e37e02cc0baf9f3c04b9d5361bef52fed2b758362d8b2cf615f91c731
PDF
Publication page6287aa0e1402b1f1e85addbfc9a582776db878b2df65f25f264ea5ac5e564b70
Manifestb239e1c2bfa20301a42d6f2d2f2c2df5b7715497549fbaa5708903c69d7d90af

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
SignatureYHQ3PzaaXKNplicBFfsM3nuHoIZIGwRJ7tngFwtFdTKkzgKBl++fhuPK1MnH0Ba7+qhk/knfEIDMh+YbyLU9DQ==
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

2026-09-17T10:09:21.968932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076631
observed 6287aa0e1402b1f1e85addbfc9a58277...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:21.950708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076631/manifest.json
observed b239e1c2bfa20301a42d6f2d2f2c2df5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:21.931461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076631/publication.md
observed 40915f8e37e02cc0baf9f3c04b9d5361...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:21.912604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076631/publication.txt
observed bc24015c0b71d6a8d58393083e50631e...
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.