OpenTechnical

OT-2026-000071413

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, 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-2026-000071413) never changes.

Identity and time

Publication numberOT-2026-000071413 · never reused
Internal UUID01a0ae91-e0ed-7a46-8a7f-011d7706cddd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071413
StatusPUBLIC

Content hashes

Canonical text2ce89bb30d67705c3a065f7b16cd8b058a7100d54184078b4aaf431c23469991
Markdown88068184bb4371396cec4c01a1cff0dd86c7322f960818266c87d20d18a4edec
PDF
Publication pagee5629896fbd5ac4d7cbb02f55301beb26469961b1e62c7293794c0d2b6071481
Manifest722901711032262079b6b5039756a7e6531d451da731842e84520a80ce85fe2e

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
SignatureHJNkDnIjbIpMkkcilU0Th4cV4hf0VLuRdcGNR9xVHRNecOPhCRdX1faR0IE4TMrUTysi1uyZMBWYMSwbw/HnDA==
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

2026-09-17T10:25:02.578044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071413
observed e5629896fbd5ac4d7cbb02f55301beb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:02.561263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071413/manifest.json
observed 722901711032262079b6b5039756a7e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:02.544764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071413/publication.md
observed 88068184bb4371396cec4c01a1cff0dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:02.527876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071413/publication.txt
observed 2ce89bb30d67705c3a065f7b16cd8b05...
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.