OpenTechnical

OT-2026-000081017

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, sustained 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-2026-000081017) never changes.

Identity and time

Publication numberOT-2026-000081017 · never reused
Internal UUID01a0ae96-b976-7aaf-8161-f9041c0a10ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081017
StatusPUBLIC

Content hashes

Canonical text42d10dda6ab8ec96e0d9b222f20919cc18ee79161019869c36f6426f9cff6783
Markdownbe2c9037efc0b879a6f6cb15c427858a5c02430dc3729c95d0f26f26d40dc9c2
PDF
Publication page16f74f0837b0a121970c78f7d3ab0a5264f0deab5b50250a0b478c68ff4ef654
Manifest65e17237b5f411e13c072744a494ce8c54046d575a11e3cbdfa9cbe70cb04af7

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
Signature8NUEIPqqzbOO2CDvioE0vLQ5ks0BaXTQyH9BfGOcUi1An3/gYJ1wmKmxGGrD/m0UE+xRt7XkdUTPHZPiFGrJDg==
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

2026-09-17T10:02:18.439921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081017
observed 16f74f0837b0a121970c78f7d3ab0a52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:18.423824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081017/manifest.json
observed 65e17237b5f411e13c072744a494ce8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:18.395087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081017/publication.md
observed be2c9037efc0b879a6f6cb15c427858a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:18.367147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081017/publication.txt
observed 42d10dda6ab8ec96e0d9b222f20919cc...
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.