OpenTechnical

OT-2026-000075640

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, vented before set-down

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-2026-000075640) never changes.

Identity and time

Publication numberOT-2026-000075640 · never reused
Internal UUID01a0ae94-29fd-7bc5-a470-a5e44e03a9b6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075640
StatusPUBLIC

Content hashes

Canonical text6ba3c3fdd462608b01add65b2e8a6369be6f4a32ef86ba727aa0c0924a85f03d
Markdown640715636a3a5614cdd6993887b3e95e3894f4b9a8331b6960cc48035bf82222
PDF
Publication pagef16b6c46f5353b7f7729ccb4fd00f1aa3bc9a284582f97eb8c705650eacbc9b6
Manifest4f817cb1eb7cfa7a0bb6dbbe59cfee61df5ce16bc4284e2fd15dfb394eb76abc

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
Signaturejc/s5LjTvtMJBvN6q/NmcRA7JyNVOCwRA+WbRPLMPcpM2oNuzcRAU9Taz51CQyEBaUGxuJtPmvE/KashmHa+Cw==
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

2026-09-17T10:13:34.287305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075640
observed f16b6c46f5353b7f7729ccb4fd00f1aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:34.254170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075640/manifest.json
observed 4f817cb1eb7cfa7a0bb6dbbe59cfee61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:34.226762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075640/publication.md
observed 640715636a3a5614cdd6993887b3e95e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:34.200068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075640/publication.txt
observed 6ba3c3fdd462608b01add65b2e8a6369...
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.