OpenTechnical

OT-2026-000070636

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, vented 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-2026-000070636) never changes.

Identity and time

Publication numberOT-2026-000070636 · never reused
Internal UUID01a0ae91-8c2b-7e2e-88fe-53d0bd7bb458 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070636
StatusPUBLIC

Content hashes

Canonical text20c5a450503c59688a4d1acf903d7ebc0e7f66b8cc21e61b7917e8bcbd483ff7
Markdown235ccc62ed950f291663daba87514faa7d42e9cc691f0efb313fbf51f6e5aa1f
PDF
Publication page911f903b086ddc32b970a2e30d1d32388b9ad81148101e2b7a6d6af871ba8541
Manifest321644cea979d708fc326d11b83cbbf31d1fdbb56667f72c7e752ce76e86e898

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
SignaturekcQsqclF+BXV3jrWZbztjpl0yw/XorufXPdNJ5ydp2wiK6UYZSH0gaLUd5d6iekj/ih1UBRJN9fiLNDBfu41Dg==
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

2026-09-17T10:25:18.403470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070636
observed 911f903b086ddc32b970a2e30d1d3238...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:18.386777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070636/manifest.json
observed 321644cea979d708fc326d11b83cbbf3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:18.368983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070636/publication.md
observed 235ccc62ed950f291663daba87514faa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:18.349933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070636/publication.txt
observed 20c5a450503c59688a4d1acf903d7ebc...
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.