OpenTechnical

OT-2026-000042812

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, 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-2026-000042812) never changes.

Identity and time

Publication numberOT-2026-000042812 · never reused
Internal UUID01a0ae7a-c0d0-7532-b026-83dc4209ce17 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042812
StatusPUBLIC

Content hashes

Canonical text764eaba6af81351a626599f0f4fc4375288554fdafc5fe26f8423b6ad3ea652b
Markdown27990b144ece93a0995897a247f0e62f941b2208e69eb7cd31104f3414e09405
PDF
Publication page065eab70115ae546d5473ac7d880c23050d68e4db762af4854cab9790c91bf1a
Manifest1f3d6ec8c7567497e07dbd0df8db95aa9ba7721733f9c486dae7f92796ac488e

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
SignatureDbqJ4c8e1+zjRK9Va0cMQiP7XIgAdbW7E8QSYuXcxgkc+es/HlYh03N/oxmxOiCG2dTy+o4YWkeDV1eWab2RBw==
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

2026-09-17T11:15:17.307025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042812
observed 065eab70115ae546d5473ac7d880c230...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:17.287603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042812/manifest.json
observed 1f3d6ec8c7567497e07dbd0df8db95aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:17.270431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042812/publication.md
observed 27990b144ece93a0995897a247f0e62f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:17.250477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042812/publication.txt
observed 764eaba6af81351a626599f0f4fc4375...
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.