OpenTechnical

OT-2026-000081751

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, plant vacuum 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-2026-000081751) never changes.

Identity and time

Publication numberOT-2026-000081751 · never reused
Internal UUID01a0ae97-0f74-7d0b-8df6-762c4849f208 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081751
StatusPUBLIC

Content hashes

Canonical textaf5fa7a08fadf7d83fda025c33f19b2de60f441ba300f7e73339193c3c43fafa
Markdown266af8a5edc80d95f9660282705c0f9664cac846ec849d169329548a7ef8d220
PDF
Publication page6d4f71cbdbf0e50167de65e25456241fd1c4747e7a07ac6eaee1f2b32febcd97
Manifestb090fee2ea60ed27e9d9c56711a5bfd29e392501c4f3f384a34de73583b41388

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
Signature23W9xAKcQZR7NzpgMCqOEHlUDWokeoziEyrAz7voU7Z0B4u6FxZtfFhagNDEJ+in6ixgKxlJLJmXHcB8bMd+DA==
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

2026-09-17T09:59:50.213013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081751
observed 6d4f71cbdbf0e50167de65e25456241f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.196482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081751/manifest.json
observed b090fee2ea60ed27e9d9c56711a5bfd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.179719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081751/publication.md
observed 266af8a5edc80d95f9660282705c0f96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.162057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081751/publication.txt
observed af5fa7a08fadf7d83fda025c33f19b2d...
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.