OpenTechnical

OT-2026-000081165

Publication integrity record

Four cup vacuum gripper, four 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-2026-000081165) never changes.

Identity and time

Publication numberOT-2026-000081165 · never reused
Internal UUID01a0ae96-f373-7da2-9f97-0a161fb12345 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081165
StatusPUBLIC

Content hashes

Canonical text2a09280d878940fcb229d82b2e86615f83ebad264a172f2197ddea21a281580b
Markdown88b44ee09248b76126d949f58125e57eea5d86f677450ce666cc9b284ace48c2
PDF
Publication page22897f398d88f254438455b52abd2bf23876977605dad7bf320c22a7e3c23dc4
Manifestc7fdaa3c3d26ba6e072abcaf52fc55da05181db7720a4e02c8ab982f590b0a42

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
Signatureq8UKw9c2avVdCqrNzj3BWQDnQZCeJ82zJGGwoVHF7ItTzUeNQtEX21c4GO/iwr6vza99SiEytgB1KYRz2bBcBQ==
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

2026-09-17T10:01:08.313318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081165
observed 22897f398d88f254438455b52abd2bf2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.296826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081165/manifest.json
observed c7fdaa3c3d26ba6e072abcaf52fc55da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.279260ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081165/publication.md
observed 88b44ee09248b76126d949f58125e57e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:08.260539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081165/publication.txt
observed 2a09280d878940fcb229d82b2e86615f...
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.