OpenTechnical

OT-2026-000043112

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, pulsed blow-off after 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-2026-000043112) never changes.

Identity and time

Publication numberOT-2026-000043112 · never reused
Internal UUID01a0ae7b-327a-704e-ada5-47b2d1c6c179 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043112
StatusPUBLIC

Content hashes

Canonical textee01462e823782139370221a1eb395fe4323ea8c39b4fcf8ae51613140f0bc10
Markdown691b7593af0067f420d5fe5abf30e9bd0fd5988ee7b83648b55eef5ede40d765
PDF
Publication page12705e0f9c26ee7e20840da14953f76f68c712022e7895dea8b508827e8d0825
Manifestb34b416179feaad14bbf64f12e4704806a6073368f61a6f89590ad79b4258f1d

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
Signatureck6jJYs/deWb5257gRqWfzbLElBlUPqls4XygC6+8gN71lHKMdAtyNTTthdQMPao6RBvaOH7ujakQmRrhxJvAA==
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

2026-09-17T11:13:32.319331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043112
observed 12705e0f9c26ee7e20840da14953f76f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:32.300309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043112/manifest.json
observed b34b416179feaad14bbf64f12e470480...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:32.282057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043112/publication.md
observed 691b7593af0067f420d5fe5abf30e9bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:32.261961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043112/publication.txt
observed ee01462e823782139370221a1eb395fe...
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.