OpenTechnical

OT-2026-000067375

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000067375) never changes.

Identity and time

Publication numberOT-2026-000067375 · never reused
Internal UUID01a0ae8f-6bd8-7db6-9f61-b68646efefc7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067375
StatusPUBLIC

Content hashes

Canonical text8b6d73617d1c016c8385a2ee269ce9ef8026eb0026d4840df6eae2f7436fd95e
Markdown5dfa2a4b42e90c2ee0dbbee67042b653d5cecc97b5c958381d76b6e380cdca0e
PDF
Publication page77b40897a27b91f08d9223be8f3b5f7d5b83e86056a0ff75d9f5cb50fb195d56
Manifest04460e625fb96f803031b00021f1df0f7c369c69ba9c1f6defcbc590376af218

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
SignatureQWWLL2Y+BADbfK/hnD2Jx5yzLQBrIjdIy35hb1b9JNh1Tlby3rHs0diB9RKH/il6gr7TVGZCkCN23l4tpKMHDg==
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

2026-09-17T10:31:33.764311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067375
observed 77b40897a27b91f08d9223be8f3b5f7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:33.746535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067375/manifest.json
observed 04460e625fb96f803031b00021f1df0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:33.729514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067375/publication.md
observed 5dfa2a4b42e90c2ee0dbbee67042b653...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:33.711544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067375/publication.txt
observed 8b6d73617d1c016c8385a2ee269ce9ef...
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.