OpenTechnical

OT-2026-000076841

Publication integrity record

Four cup vacuum gripper, four 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-2026-000076841) never changes.

Identity and time

Publication numberOT-2026-000076841 · never reused
Internal UUID01a0ae94-b070-7d13-82a4-47e76ca26eb5 · 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-2026-000076841
StatusPUBLIC

Content hashes

Canonical text516cd9bb42dc24244d9dc87b513dc3ad46b8d222337728daeb0f1efd6a4eb35a
Markdownb18cc95cac25932f33ee9c12c4431555adb0aa349124987cf544b7669dfc14f8
PDF
Publication page24758787f8d121a88a55101dc2dc513bc58145e1ecaed040626d78b050729f95
Manifestf5e6864bd42c74c7f36e8051cb8b8b6c9fbfba99fba67b09c809da31264ed6f3

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
SignatureNs2RTFeci9PHWKNBPH5sGeBm6dcLpTWG1UCXdIYtF1LT84igraxJHAkxjvWyoI782a5psnqjcKCbU7K3CxyNBg==
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

2026-09-17T10:09:43.579251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076841
observed 24758787f8d121a88a55101dc2dc513b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:43.562930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076841/manifest.json
observed f5e6864bd42c74c7f36e8051cb8b8b6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:43.544541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076841/publication.md
observed b18cc95cac25932f33ee9c12c4431555...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:43.527023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076841/publication.txt
observed 516cd9bb42dc24244d9dc87b513dc3ad...
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.