OpenTechnical

OT-2026-000087718

Publication integrity record

Four cup vacuum gripper, four zone face, pump fed, supply line 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-2026-000087718) never changes.

Identity and time

Publication numberOT-2026-000087718 · never reused
Internal UUID01a0ae9a-cd55-7b2c-9002-48bda88b7ea2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087718
StatusPUBLIC

Content hashes

Canonical text10b1cef132238ada0fdf4e471749ae0ad4d7bd4ffa8af1088c92a0ee0a3b06af
Markdown9fb5438d8ad7ae06d38e6f566849d83c8a95be2aec2cfd2b02b206b3c998b5d5
PDF
Publication pageb7b3776e089c221408cfb10744ecbc04b2e4fa49baf25d0fa9b6ffa9a3d9334b
Manifest91e1ef523ddf2ea4a016480af021715b4969a6878359bae561a785be5aa23336

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
Signaturee07W8sv7HjJqhgE8KNG3e4HBl1jZBOk2b/VLt+ONMJZ9jZEwFUM988u7uu5q5CojyHL0gvj1qnNLKUKrdsZYAQ==
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

2026-09-17T09:51:10.246624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087718
observed b7b3776e089c221408cfb10744ecbc04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.230971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087718/manifest.json
observed 91e1ef523ddf2ea4a016480af021715b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.213990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087718/publication.md
observed 9fb5438d8ad7ae06d38e6f566849d83c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.199272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087718/publication.txt
observed 10b1cef132238ada0fdf4e471749ae0a...
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.