OpenTechnical

OT-2026-000081797

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000081797) never changes.

Identity and time

Publication numberOT-2026-000081797 · never reused
Internal UUID01a0ae97-0f74-74cf-920e-6bfa210ed732 · 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-2026-000081797
StatusPUBLIC

Content hashes

Canonical textcc60a99d025d346ce81f4877bfcab1dcbd2fa54c55070bbcab60348cee68bfe1
Markdown83102aef1ebb1896f6201335ba521ab8a257b23a3beec8b5eaa6f4af6e562e0a
PDF
Publication page71bc543e55fe667917eb6678f0216821933533a3399c61d9b1d0201523072b1f
Manifestfd4e8a9909211c7f76bfa27e2230ea8283ce55abdaa8fd0e0bdc8d021342ea97

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
SignatureyL2qeZgvfcCy52cUaJGEM2PhYengBN8matJOpl64HOjpbkrqfXJssa8bvjMNbyWTNQb/A7uc5Vvrsq/2fN+DBw==
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

2026-09-17T09:59:53.822131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081797
observed 71bc543e55fe667917eb6678f0216821...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.803602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081797/manifest.json
observed fd4e8a9909211c7f76bfa27e2230ea82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.784173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081797/publication.md
observed 83102aef1ebb1896f6201335ba521ab8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.765995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081797/publication.txt
observed cc60a99d025d346ce81f4877bfcab1dc...
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.