OpenTechnical

OT-2026-000026540

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, sustained 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-2026-000026540) never changes.

Identity and time

Publication numberOT-2026-000026540 · never reused
Internal UUID01a0ae71-f4a9-7aa1-baae-434b058b6d13 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026540
StatusPUBLIC

Content hashes

Canonical text8d632c721af0dd5dfdbdea56064b26839027be9e79b1552a1e33961cddba0d42
Markdown83b0a1d010d0e9cf3a1325fa3f01eec43397d11339ca588f48e10be7488c8d06
PDF
Publication pagebd5fc3dcd2d79a7f7db1c9f6babb289c2c20067cd72c9e588ed81e1b2f7f465e
Manifest17d63a33fa2a8ed12f2f8bf3de7bbec1b31e6a1eff5c23a0fb5896678696130e

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
SignaturerOAMzvtrPYtW0X80YcnBVe9p5n8YgrVkMvmWVzC7vKkz49s0uERwo+gxlWtlV41shI4iagH0i/i0r438TTmqCg==
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

2026-09-17T11:44:09.689493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026540
observed bd5fc3dcd2d79a7f7db1c9f6babb289c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:09.668960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026540/manifest.json
observed 17d63a33fa2a8ed12f2f8bf3de7bbec1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:09.650546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026540/publication.md
observed 83b0a1d010d0e9cf3a1325fa3f01eec4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:09.632699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026540/publication.txt
observed 8d632c721af0dd5dfdbdea56064b2683...
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.