OpenTechnical

OT-2026-000069684

Publication integrity record

Single bellows cup vacuum gripper, single 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-2026-000069684) never changes.

Identity and time

Publication numberOT-2026-000069684 · never reused
Internal UUID01a0ae90-b52c-7733-963d-8cc081e0ec76 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:54.310022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069684
StatusPUBLIC

Content hashes

Canonical textdcdaf1f2542be39e380c1a0f43b075f3418e7dd1442ecd8835b40d2a395198f7
Markdown3ecf9a275ffb7ec969cabf20f40b7650789f7eb2361269f5ad62a964711374f0
PDF
Publication page6fac688aa1d24670b90f510e6e6b7fc7f5072f4ab72f5c6d7e4e986024e0f7a2
Manifest8c81fb8fef3dab853cf864c9f4816a093a89502e14926a09b4df1c6096dc66c4

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
SignatureJEnT23zuXQnIgHwLVFK+AXPR5VRJzbNpzymivdkw6pcgR59JyBdNWe6IlzwpUBKdUzZUT5XTVileEM6pKLsVAg==
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

2026-09-17T10:28:21.501566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069684
observed 6fac688aa1d24670b90f510e6e6b7fc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:21.481693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069684/manifest.json
observed 8c81fb8fef3dab853cf864c9f4816a09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:21.464573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069684/publication.md
observed 3ecf9a275ffb7ec969cabf20f40b7650...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:21.445225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069684/publication.txt
observed dcdaf1f2542be39e380c1a0f43b075f3...
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.