OpenTechnical

OT-2026-000072854

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000072854) never changes.

Identity and time

Publication numberOT-2026-000072854 · never reused
Internal UUID01a0ae92-89da-7288-81c7-2ebee06de7af · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072854
StatusPUBLIC

Content hashes

Canonical text4b63bdb89d46f2c937565c362fa56443caac9f3daedccef0cfd35835ab3bab4b
Markdown661dd959115722e2bc6b3fdd51f803b68bb9305d80c2efe74bed476dd23c60ca
PDF
Publication pagee35a9fcdf44eafde95a2016dd87797702aafa9d105b1bbf4c21093d6e9e33249
Manifest2e0b68a47635f492303ca3f3f53a2a2be4096baad86523a559df3e8a4816ec82

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
SignaturerlAnMmKsePJUmkVa72efAyGFafX/LpPpQnA1zOox+4GiaQYAxOplWlc9gokNYmI1UNqwlM9cEUi1W2rV4xcWCw==
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

2026-09-17T10:22:46.649485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072854
observed e35a9fcdf44eafde95a2016dd8779770...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.632817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072854/manifest.json
observed 2e0b68a47635f492303ca3f3f53a2a2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.615715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072854/publication.md
observed 661dd959115722e2bc6b3fdd51f803b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.598117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072854/publication.txt
observed 4b63bdb89d46f2c937565c362fa56443...
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.