OpenTechnical

OT-2026-000005230

Publication integrity record

Vacuum cup gripper, four zone face, two stage ejector, pressure verified, contact triggered, rubber cups

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-2026-000005230) never changes.

Identity and time

Publication numberOT-2026-000005230 · never reused
Internal UUID01a0a932-2022-7b77-9984-c5704876880a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:50:29.669792Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005230
StatusPUBLIC

Content hashes

Canonical text6e4e1919f87f255f15dc42cc620d66bc021d1f5e0c25d3c8178354ee9cc66ab4
Markdown65be6c7533703c1c506e37e381625197ab42d8e87de4bac1dc07a808fd06d9cf
PDF
Publication pageb6ed27add1ed00611ff3e5881d3b5d553d442bf2d99cca1f63100066fd5d3c08
Manifest86dbf235998d1ff67f1bedf123b42198523b4c489fdc3a10b7906336702f529d

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
Signature7Q1S/B3j/ObhTjXisDbYnX0dq/0Z3PihGX7BC0ADE88N4YRXzi+UvIjql4Bcw4KscfG2RX51s8nYApv7HkBpAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:33.137785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005230
observed b6ed27add1ed00611ff3e5881d3b5d55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:33.122144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005230/manifest.json
observed 86dbf235998d1ff67f1bedf123b42198...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:32.985212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005230/publication.md
observed 65be6c7533703c1c506e37e381625197...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:32.972362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005230/publication.txt
observed 6e4e1919f87f255f15dc42cc620d66bc...
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.