OpenTechnical

OT-2026-000031243

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, pulsed 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-2026-000031243) never changes.

Identity and time

Publication numberOT-2026-000031243 · never reused
Internal UUID01a0ae74-87ab-79a4-8757-acbc9a188802 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031243
StatusPUBLIC

Content hashes

Canonical text2e381ed59a382922d55c1947954b33af68a80729a0ba7fc321fa55ad89cae5f0
Markdown8cf3548391b09c745058d801c5270ebae5bc4b3dd60aed38844dc99a677b3109
PDF
Publication page8aac47fa422a1a4d4e66a84beffffa7dd05adb38ddac1b67ca5e711137cc3aab
Manifest350400c0d0e78185301bc560d2c55bd2afeb782358894d3361df8331743ef3dc

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
SignatureR0UJ2qc5eNzHdpKVrNWTZe9JNs1c9sBJUM69SsDz4fh4f4lLnhkLa9COMSWdpG2ciaoFb3Xz4Qr2sQgpHBgDAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:35:48.965419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031243
observed 8aac47fa422a1a4d4e66a84beffffa7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.949288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031243/manifest.json
observed 350400c0d0e78185301bc560d2c55bd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.933040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031243/publication.md
observed 8cf3548391b09c745058d801c5270eba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:48.913163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031243/publication.txt
observed 2e381ed59a382922d55c1947954b33af...
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.