OpenTechnical

OT-2026-000089478

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000089478) never changes.

Identity and time

Publication numberOT-2026-000089478 · never reused
Internal UUID01a0ae9b-db02-75ae-9d92-bd229768f9a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089478
StatusPUBLIC

Content hashes

Canonical text8c424e9f33c0c7eb7b06f0b99594c1b48a4c754181c9c02eac878d284d8737f7
Markdownf3abca91914c191e62899f74ef3b703e4a71365619311b7623d1ebd1c36cb09c
PDF
Publication page6aa26115ab2235b952ed85e4593a936dbd83d4faa8c9475ddb0cc2ab592f71c4
Manifestbf4fce13eb358d09dca1ab118d4abbc10186b56d907c16f508fae1bc1aa48611

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
Signature5Dg5ap/ZBGRM9GhEFYin5zXVdo4jur5LTGD1RCERFf7/sS/jFLitGXzdLmEeVfc9miZsMG221W399JvUmcqnAg==
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

2026-09-17T09:47:37.639531ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089478
observed 6aa26115ab2235b952ed85e4593a936d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.623768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089478/manifest.json
observed bf4fce13eb358d09dca1ab118d4abbc1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.606331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089478/publication.md
observed f3abca91914c191e62899f74ef3b703e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.589591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089478/publication.txt
observed 8c424e9f33c0c7eb7b06f0b99594c1b4...
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.